Tire Rack Consumer Review of the Continental ExtremeContact DWS

Wednesday, April 25, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.


Continental ExtremeContact DWSReviewer's Overall Rating: 9

2007 Mazda MAZDA3 s 4-Door
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 1,500
Location: Cincinnati, OH
Driving Condition: Spirited

Initial Review, 1,500 Miles on Tires
April 14, 2012

Bought these to replace 3 year old (39,000) Perelli P6's that began to cup. These Conit's are impressive. I started to feel the same tell-tale shaking that I associated with the failure of the P6's. Replaced shocks and struts with some higher end Koni's. The combination of the Conti's and the new suspension has proven to be the best investment that I have made since the car was purchased new. I highly recommend these to any Mazda 3 lovers out there.

Tire Rack Consumer Review of the Bridgestone Turanza EL400-02

Monday, April 23, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.


Bridgestone Turanza EL400-02Reviewer's Overall Rating: 7.73

2008 Chrysler Town and Country
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 52,000
Location: Monroe, GA
Driving Condition: Average

Initial Review, 52,000 Miles on Tires
April 22, 2012

I am nearing the time to replace my OEM tires of this type and am shocked at the reviews I am seeing. Because I was so pleased with the performance of these tires, I was comparing them against others available. For the price I don't think they can be beat, however I may pay a bit more and upgrade to the Continental LX20. I will probably have 65000 miles on them when I change and up to this date without so much as a flat. Since the car was new I have averaged about 26 MPG which is at the high end of mileage but then again 90% of my driving is highway.

Suspension Shopping for my BMW 740i Part II

Tuesday, April 10, 2012 by Ben Rooney

Having already chosen the Eibach Pro-Kit Spring Set for my 1997 740i, it's time to turn my attention to the the shocks and struts, known collectively as dampers. The available options include the Bilstein Touring Class, Bilstein Sport and KYB GR-2. 
 

The Touring Class and GR-2 are similar to one another in that they're both premium quality replacements for the stock dampers. They are valved about 10% firmer than the originals to account for the wear that accumulates in other suspension components over time and their goal is to provide ride and handling that equals or exceeds the Original Equipment.
 

The Bilstein Sport is a high-performance shock absorber designed for use with lowering springs. The mono-tube design, while more expensive to produce, has advantages for heat dissipation, longevity and consistent performance. 
 

Do I spend the money on the Bilstein shocks or save some cash and go back with a factory-equivalent part? The Bilstein Sports are the only replacement shock absorbers that are officially recommended to use with the Pro-Kit springs. Using the Touring Class or GR-2 with lowering springs would void their warranties. While this wouldn't be the first warranty I've ever voided when modifying a vehicle, I think that if I'm going to go through the trouble and expense of replacing them, it's worth doing it right. The Bilstein Sport was the winner and will make a great addition to my BMW 740i.

Suspension Shopping for my BMW 740i

Friday, April 6, 2012 by Ben Rooney

My 1997 BMW 740 is likely overdue for a suspension overhaul. The potholed and broken pavement that is typical of this time of year has highlighted that fact. With over 180,000 miles on the vehicle (only about 20,000 are from my driving), I have not replaced the BMW shocks or springs and do not know whether the original owner did either. The existing components could very well be the ones that came from the factory! 
 

The decline in handling from sloppy, worn-out suspension components is taking a toll on my enjoyment of the car. Therefore, it's time to start plotting my replacements. Springs are easy to replace and relatively affordable. I have narrowed my choices between the Eibach Pro-Kit Spring Set and H&R Sport Spring Set. Both brands are excellent and well priced. For a car like mine that may see some fast driving but is generally a daily driver, the Pro-Kit offers an excellent combination of comfort and handling. 
 

Shocks are a little tougher choice and more expensive. Check back next week to see what option I've chosen. 

Tire Rack Consumer Review of the General Grabber HTS

Thursday, March 29, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.


General Grabber HTSReviewer's Overall Rating: 8.12

2001 Dodge Durango 2wd
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 10,000
Location: Miami, FL
Driving Condition: Average

Initial Review, 10,000 Miles on Tires
March 19, 2012

The General Grabber HTS was mounted on the front axle of my 2001 Durango 2WD, a set of Michelin LTX M/S2 were mounted on the rear axle. After 5000 miles, tires were rotated. 10,000 miles on both sets of tires now. Both tires started with 12/32 of tread per their Specs. Grabber HTS has about 7/32 left, M/S2 has about 9/32 left. Most of the driving is in the city of Miami. Tire Rack road test of the General Grabber HTS is relatively accurate. The main difference I notice, is that the General tire is a quicker responding tire to steering inputs, and gives a bouncier ride at the same tire pressures. The Michelin LTX M/S2 gives a more pleasant ride, but responds slower to steering inputs, which is not an altogether bad thing with the nervous and archaic suspension of my 2001 Durango! Both tires excellent in the wet, considering they are SUV tires! Durango has recently installed Bilstein shocks on front, Monroe Sensa-Tracs on rear. Generals have a built-in rim guard, and a hard plastic covering on the tire sidewall, which may protect the tire better than the Michelin's basic rubber sidewall. I notice that the new Continental LX20 is quite similar to the General, and I believe Continental owns General. In about 10,000 miles, the General Grabber HTS will probably have to be replaced. I would chose either the Continental LX20 or the Michelin LTX M/S2 at this time. I would consider the Goodyear Assurance CS Tripletread, but I am not sure it is made in my size. Hope this review was helpful.

Tire Rack Consumer Review of the Continental ContiTrac

Thursday, March 29, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Continental ContiTrac Reviewer's Overall Rating: 8
 
 

2006 Ford Escape XLT Sport V6 4wd
More Tire Reviews for This Vehicle

 
Buy/More Info
Miles driven on tires: 90,000
Location: Pensacola, FL
Driving Condition: Average

Initial Review, 90,000 Miles on Tires
March 23, 2012

You read it right: 90,000mi! We bought this Escape in '07 used with only 14k miles on it. It had the original tires when we bought it. It still has the original tires today. If you don't believe me, I'll be happy to email you a pic of the tires and the odometer. They have finally worn out. To spite all the negative reviews on this tire, I can't honestly give them a bad review. As a gt mustang owner, I am well aware of how fast tires wear out. I'm impressed to the point of shock. I thought I was going to have to replace these tires 3 years ago based on reviews, but they just kept holding out. I don't know if this was a fluke or not. If there wasn't so much bad noise about them, I'd tell everyone they were crazy NOT to buy these tires. I feel like the exception here.

 

Tire Rack Consumer Review of the Hankook Ventus V12 evo K110

Thursday, March 8, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.


Hankook Ventus V12 evo K110Reviewer's Overall Rating: 9.5

2007 Volvo S80 3.2
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 24,000
Location: Seattle, WA
Driving Condition: Average

Initial Review, 24,000 Miles on Tires
February 01, 2012

These came with my CPO 2007 Volvo S80 3.2 FWD when I bought it from the dealer - they were brand new (245/40/R18). After 24,000 miles there is probably at least another 8 or 9 thousand miles left in them. I was so impressed with the ride quality, grip and lack of road noise that I also purchased a set for my 2005 Mini Cooper S when it needed new tires to replace the factory run-flats.

One of the things that has bothered me from day 1 is the complete lack of protection for my 18 inch Zubra alloys because the rim protection band is either tiny or non existent. 5 days after picking up the car I rubbed a kerb while parking at very low speed, a couple of weeks later my wife did the same thing! Both wheels showed quite a lot of kerb damage. Prior to this car I have never damaged an alloy on a kerb before, ever.

Last Saturday I rubbed a kerb again (24,000 miles later), probably at less than 2 miles an hour - and the side wall of the tire bubbled. Was shocked at the result. While driving the car home I could feel the vibration. Haven't had it on the freeway since - and will be getting a new set ASAP.

So I've decided to change to a set of Yokohama S.Drives, mainly because they're meant to have better rim protection, and a stronger sidewall - hopefully I won't regret it. 30 day 'test drive' promise though, so if I really hate them I will go back to the Hankooks or try something else.

Will file a review on the S.Drives once I've had a chance to check them out.

Tire Rack Consumer Review of the Continental CrossContact LX20 with EcoPlus Technology

Monday, March 5, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.


Continental CrossContact LX20 with EcoPlus TechnologyReviewer's Overall Rating: 10

2004 Chevrolet Avalanche Z66 2wd
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 500
Location: Cave Creek, AZ
Driving Condition: Spirited

Initial Review, 500 Miles on Tires
February 27, 2012

What I was looking for was a responsive tire with good straight line stability. Handling and surefooted confidence was far more important than a spongy ride. The Yokohama Geolandar HT/S tires (with 15K on them) that were on the truck when purchased used at 93K were quite squirmy exhibiting a very delayed response from steering input. Before I looked for tires I replaced the shocks, Idler arm and pitman arm, and had the truck aligned. I had a very unique opportunity to test three new tires on my truck: P265/70R17 Michelin LTX MS2, LT265/70R17 Michelin LTX MS2, and the P265/70R17 Continental CrossContact LX20. The P265/70R17 Michelin LTX MS2 exhibited considerable tire squirm at both 35 and 40 psi cold, not unlike the Yokohamas. The LT load-e version of the same Michelin LTX MS2 tire felt very similar at 50 and 60 psi, although the ride was predictably firmer. The Continental CrossContact LX20s, however, were like night and day compared to the Michelins and the Yokohamas. There was more feedback from the tires with a slightly firmer ride. They were quieter (although I wouldn't consider the Michelins noisy). But the steering response was considerably better. Steering input resulted in a nearly immediate change in direction, far better than either the Michelins or the Yokohamas which both exhibited an uncomfortable lag in response. The Continentals are rated at a slightly higher load rating then the P-Metric Michelins (144 lbs. per tire more) and are three pounds lighter. If you are interested in handling response and a better driving tire, get the Continentals.

Tire Rack Consumer Review of the Michelin LTX M/S2

Thursday, March 1, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Michelin LTX M/S2 Reviewer's Overall Rating: 9.64
 
 

2004 GMC Canyon SLE Extended Cab
More Tire Reviews for This Vehicle

 
Buy/More Info
Miles driven on tires: 80,000
Location: Abingdon, VA
Driving Condition: Average

Initial Review, 80,000 Miles on Tires
February 26, 2012

Gmc Canyon 4x4, S-10 4x4, Honda Ridgeline, Toyota 4Runner, All 4 wear LTX M/S. My Canyon just got 3rd set of LTX's, second set got 80,000 miles. S-10 is on its 4th set, it's pushing 200,000. 4Runner is still on 2nd set at 55,000 miles, truck has 130,000. Michelin was very acommoidating to warranty replace all 4 on my Ridgeline at 35,000 miles 7/32 tread left for cracking tread and sidewall. I worked in the tire industry several years back and found through experience that Michelin makes a superior product in most of their product lines. My BMW has stock 18" PS2's and My 09 V6 Accord has 18" stock Michelins. The Max performance Michelin's I have used are unprecedented for traction & handling, 25,000 for wear is common for me. Over 30 years of personal tire buying my advice is to pay a small amount more up front and in the end you will be better served for the life of your tires. I have used Goodrich, Uniroyal, Firestone, Yokohama, Goodyear,& Bridgestone, all fall short in long range performance. Only the Yokahama and Bridgestone were close in long life ride comfort, as well as tread wear. Please take my comments seriously, I have had literally hundreds of personal and business tires and Michelin as a company has serviced me better than the other manufactures. If you regularly maintain the alignment and shocks on a vehicle & check your air pressure, The Michelin will in general wear more evenly and maintain a better ride longer, not to mention service you more mileage on most of their product line.

 

Tire Rack Consumer Review of the Kumho Ecsta 4X

Thursday, February 16, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Kumho Ecsta 4X Reviewer's Overall Rating: 7
 
 

2005 Mazda MAZDA3 s 5-Door
More Tire Reviews for This Vehicle

 
Buy/More Info
Miles driven on tires: 500
Location: Olathe, KS
Driving Condition: Average

Initial Review, 500 Miles on Tires
December 19, 2011

I replaced a set of Michelin Pilot All Season tires with these 4X's. While I find that the performance of the tire itself tends to be on par with the Pilot A/S, one area where it falls EXTREMELY short of is ride comfort. The performance of these tires over bumps is absolutely unacceptable. The shock of every bump is transferred to the cabin and right into the steering and seat. None of this was there with the Pilot A/S. It feels like a tire that is set at the maximum pressure allowed, then run through a suspension set up as stiffly as possible. In 500 miles it's already causing new noises inside my car and I fear it will only get worse. I cannot express enough that if ride comfort is one of your bigger requirements that you AVOID this tire.

Dry performance of the tire is right in line with the Pilot A/S which is quite the compliment considering the price of 1/3 as much. Steering response is immediate and crisp, and emergency handling is instant and with full control. I have a set of Continental DWS's on my wife's Mazda Protege and handling response is a night and day difference between it and the 4X. They blow the DWS out of the water.

Wet performance is absolutely fantastic with the 4X. I drove my 3 through some extremely heavy rain and the car never skipped a beat. I've never had more confidence in the wet than what I do with these tires.

All in all these tires are so great on so many levels, but ultimately I feel like their cheap price finally shows through on ride comfort. I’ve never owned a set of tires that handle bumps so poorly. I’m not going to replace these tires (as I’m not in the business of wasting $400), but if I could do it all over again I wouldn’t consider them even for a second. As much as I hate to say it, I’d probably sacrifice the handling performance I so desire and pick up a set of DWS’s from Continental since they do everything else so perfectly.

Tire Rack Consumer Review of the Continental ExtremeContact DWS

Wednesday, February 15, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Continental ExtremeContact DWS Reviewer's Overall Rating: 9.29
 
 

2009 Mazda Mazda5
More Tire Reviews for This Vehicle

 
Buy/More Info
Miles driven on tires: 2000
Location: Tampa, FL
Driving Condition: Average

Initial Review, 2000 Miles on Tires
February 04, 2012

I needed to replace the original Toyos on this vehicle. They were low profile and had always been very noisy. At my 25,000 mile service they were worn out, which was shocking to me! I decided I wanted the quietest tires I could get and these have not let me down. They have greatly improved the noise and ride of my vehicle. I can even take speed bumps without the jarring jolt I had with the prior set. I no longer worry about scraping the ground effects, either. Thanks to the Tirerack reviewers, you were right!

Tire Rack Consumer Review of the Continental ExtremeContact DWS

Monday, February 6, 2012 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Continental ExtremeContact DWSReviewer's Overall Rating: 6.75

2006 Acura TSX
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 8000
Location: Richmond Hill, ON
Driving Condition: Average

Initial Review, 8000 Miles on Tires
November 09, 2010

This is my second set of oversize (225/50-17) tires, but compared to the same-sized Yokohama S4 the Continental DWS has a lot less dry weather grip and sloppy corning manners. The taller sidewall really does not work; perhaps more than just the "soft sidewall", judging from other reports, the OEM 215/50-17 would have been a better choice.



Wet weather performance is better, but the DWS hydroplanes - something the S4s never did until they had 25,000 miles! The change between the S4 (a tire with no wet or snow traction, according to me) was so noticeable I added a larger rear sway bar, which got rid of much of the car's new-found understeer and the low-speed cornering tire squealing. Then I had an alignment, which help a bit, with balance, but there was still no real grip. A couple of months ago I replaced the shocks and springs (A-Spec) and THAT has changed the car a lot, but there is still not a lot of dry cornering grip; severe axle tramp (on moderately-normal starts) in the wet in 2nd gear is now gone.



Originally, driving on DWS tires on dry summer roads was like driving on snow tires in summer - sloppy, mushy, with no cornering grip - but generally predictable - and tire squealing when starting and stopping. Now that it's turned cold (30-50F), however, these tires have changed: it's easy to balance the car (yes, a new suspension helps), steering response is good, turn-in is OK,...everything seems to work: is that sidewall flex or tread compound, or both? And of course, when it's wet the roads are cooler too, which seems to help this tire perform.



The tire is, however, noticeably lighter than the S4; the car accelerates better, and I find myself downshifting a lot less on the highway, when needing to move through traffic.

Tire Rack Consumer Review of the Hankook Optimo H725

Wednesday, December 28, 2011 by Tire Rack Consumer Reviews

The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.

Hankook Optimo H725Reviewer's Overall Rating: 4.78

2010 Ford Focus SE Sedan
More Tire Reviews for This Vehicle


Buy/More Info
Miles driven on tires: 27000
Location: Nashville, TN
Driving Condition: Spirited

Initial Review, 27000 Miles on Tires
November 10, 2011

I was very disappointed in the handling, noise and treadwear of these 195/60/15 OEM tires on my 2010 Focus. It is already time to buy a set of tires (at least two).

I was shocked to see that this tire is at the same price level as the excellent Yokohama Avids that I have purchased from you in the past as replacement tires for other vehicles. I'll be ordering the Avids again shortly. Hopefully one of the improvements Ford made in their 2012 Focus is ditching this tire as original equipment.

Great Handling with KONI FSD Damper Set

Wednesday, November 23, 2011 by Cy Chowattukunnel
Have you started to notice a little wallow in curves? Maybe a little squat on hard acceleration or dive under hard braking? Well, if your vehicle has the aforementioned symptoms, then your shocks and/or struts (dampers) are worn out and it's time for a change.

Normally you'll start to notice damper wear approximately between 75,000-125,000 miles. The exact point when changes occur varies based on how you drive and the conditions of the roads you encounter. Damper wear happens gradually, therefore it can be difficult for a driver to sense it. It may be helpful to have someone else drive and evaluate your vehicle as another driver would have more of a "tabula rasa" perspective.

When the time comes to replace shock absorbers, you should get a damper that gives you proper control in the curves and smooth ride on bumps, tar strips and different road conditions. Proper handling, however, requires a higher rebound setting. A higher rebound setting means a firmer ride on bumps as the vehicle chassis will slam back down as its springs expand.

With older damper technology, most shock absorbers were designed to offer a good ride or good handling. What if you want both? KONI's FSD (Frequency Selective Damping) Damper Set provides lower rebound forces on higher-frequency piston movements (bumps) but higher rebound forces on lower-frequency movements (turns). KONI originally engineered FSD technology for the Lamborghini Murcielago and FIAT is using it on the new North American FIAT 500 Abarth. In our testing we found the KONI shocks with FSD technology provided our E46 test cars with an amazing balance between ride on our rough northern Indiana roads and proper handling on our autocross track. Although the FSD worked well for us as BMW shocks, they're also compatible with a variety of vehicles including, an Audi A3, MINI Coopers (both R53 and R56), the Mazda 3, Volvo S40, VW Jetta and VW Rabbit.

Thinking about lowering your vehicle when you replace dampers? Take a good look at KONI FSD Damper Set & Springs which combines FSD's with Eibach Pro-Kit Springs.

Koni FSD Damper Set
KONI FSD Damper Set
Koni FSD Damper Set & Springs
KONI FSD Damper Set & Springs

For more assistance in picking the proper damper set, take a look at "Choosing the Optimum Damper for Your Vehicle."

Gift Certificates for the Car Nut in Your Life

Wednesday, November 16, 2011 by Gary Stanley
Did you knGift Certificatesow that Tire Rack has gift certificates available for purchase?

They're a great gift idea for that person you can't quite decide what to give. You can purchase gift certificates in any denomination from $25.00-$5,000.00 and have them sent via U.S. mail (3-5 days) or if you're a last minute shopper, the certificate can be emailed directly to the lucky recipient in as little as 24 hours. You can even include a personal message. Unlike many gift certificates, Tire Rack's certificates don't expire for five years, so your recipient can really take his or her time deciding just how to spend it. 

If you can't decide if your friend or family member is looking to replace brake rotors, buy adjustable shocks or purchase a set of affordable tires, our gift certificates allow them to purchase what they need for their vehicle!

Which Shocks Are Right for My Car?

Monday, October 17, 2011 by Alex Mouroulis
KYB Gas-A-JustHave you ever felt that your car bounces more after you go over a bump? It just doesn't feel as connected to the road as it did when it was new? Shock absorbers are an expendable item that has a big effect on your ride quality. When it comes time to replace shocks, you're going to have access to your springs. This is a great time to add lowering springs.

Not every shock is designed for all driving circumstances. There are two major categories for aftermarket shocks: performance and touring.
  • Performance shocks give the firmer ride, and help reduce body roll. They are often combined with lowering springs for the ultimate handling combination.
  • Touring shocks are more focused on a soft, compliant and comfortable ride. Touring shocks add to that supple, luxurious ride by soaking up more impacts and road imperfections.
Listed below are a few terms that will help you better understand the characteristics of a shock adjustment:
  • Compression - The collapsing stroke of a shock, directly correlated to the movement of your axle.
  • Rebound - The return stroke of a shock, directly tied to vehicle pitch and ride quality. To learn more about shocks check out, "Damper Dynamics."

Take a look at a few of the shocks available at Tire Rack:
  • KYB Gas-A-Just: An Original Equipment replacement shock.These are your excellent-value option, as they are self adjusting.
  • KYB Monomax: Increased load control, and a firm planted feel for your light truck or SUV. These shocks have been known to offer a firmer ride, but the trade off is better control. These shocks are self adjusting. They completely transformed my Chevy Blazer back to the consistent like-new handling I missed.
  • Koni STR-T:  A cost-effective performance shock, designed to offer better handling, without a harsh ride.
  • Bilstein 5100 : Designed with the lifted truck or SUV in mind. These are ideal for your Jeep or pickup truck with mild body and suspension lifts. The articulation in off-road circumstances is superb.
Shop by vehicle to find the suspension components that work best for your vehicle.

On the Level

Friday, June 24, 2011 by Jonas Paeplow
Pickup trucks are some of the most popular vehicles on the road today, but many people don't use their trucks for what they were originally intended... hauling a load.

 

On many pickups, especially 3/4 and 1 ton applications, using the vehicle as a daily driver with little or no load in the rear creates a rear end high, front end low configuration or "positive frame angle".

Positive Frame AngleSpecific vehicles like 1999-2006 Chevrolet/GMC trucks have alignment specifications that require frame angle to be added or subtracted to the caster reading. Basically this means the specifications for these vehicles are written to a zero frame angle.
 

 

Illustration courtesy of SPC Performance

Caster is the angle to which the steering pivot axis is tilted forward or rearward from vertical, as viewed from the side. If the pivot axis is tilted backward (that is, the top pivot is positioned farther rearward than the bottom pivot), then the caster is positive; if it's tilted forward, then the caster is negative.

 

Caster angleCaster is affected mostly when a vehicle has a large front to back difference in ride height. This may also be because of heavy loading in the rear of the vehicle or "negative frame angle". The frame angle will directly affect the caster in a one to one relationship. That means for each degree of frame angle change the caster will change one degree. Positive frame angle will be added to the caster reading whereas negative frame angle would be subtracted from the caster reading.
 

Illustration courtesy of Grassroots Motorsports Magazine


Caster does not affect tire wear but it can affect how well the vehicle steers. Excessive positive caster will cause an increase in steering effort, especially for low speed maneuvers, such as parking. Negative caster can cause the truck to have poor directional stability, make it tend wander and not return to center. The addition of larger than stock tires or 4WD only compounds these conditions.

If you don't carry heavy loads, a leveling kit can help with steering issues, even if you don't want to put larger tires on your truck. If you do want larger tires, installation of lift and level kits will allow for the use of up to 35" tall tires with 17"-26" wheels and near stock offset, without rubbing, depending on the application.

When shopping for a lift kit for your pickup truck, it is important to keep in mind that there are just a few ways that a lift can be performed. Some systems relocate the suspension brackets and require the removal of all suspension components to do so. Others increase spring pressure and result in a stiffer ride. Tire Rack carries lift and leveling systems by Traxda and Bilstein. Each have their own method of lifting or leveling your vehicle.

 

Traxda's method relocates the mounting point of the spring that holds the truck up without changing the location of the stock suspension arms. Install is simpler and easier and doesn't compromise the stock ride. Each application is designed to ensure stock compatibility and quality. For example, with a coil-over shock style suspension the strut length is extended while retaining the stock spring pressure. This keeps the smooth ride of a stock truck, with no increase in harshness. For a torsion bar style suspension a re-indexed torsion key and shock relocator brackets are included to change the location of the torsion spring mount without changing the spring tension.


Truxx Lift and Level KitTraxda Lift and Level Kits raise the front of the truck 1.5" to 3" (depending on the vehicle) to eliminate positive frame angle and provide the clearance necessary to run larger wheels and tires. For some applications, the rear of the truck can be raised 1"-2" as well leveling the truck and compensating for the heavy loads used in a working environment (negative frame angle).

Most kits are a direct bolt-in style, simple and easy to install with nothing more than common hand tools and require no modifications to your vehicle. The kits retain stock ride quality. All Traxda kits come complete with hardware, full instructions, alignment specs and dedicated technical support.

Bilstein's ride height adjustable 5100 Series replacement shocks for coil-over design front suspensionBilstein 5100 pickups utilize the vehicle's existing stock coil spring.

The 5100 Series (Ride Height Adjustable) shocks feature multiple snap-ring grooves on the body of the shock to accommodate different spring seat positions, allowing height adjustments from 0" to 2.5", depending on the application. By raising the spring seat position, the factory rake (positive frame angle) can be altered to achieve a level front to rear ride height while accommodating up to 33" diameter tires. Bilstein's self-adjusting valving delivers improved damping control and a smooth ride on all road surfaces at any speed.

You don't have to live with poor steering, tire binding, steering wander and rough ride, just keep it....
"on the level."

 

Matching Lowering Springs to Shocks/Struts

Friday, June 17, 2011 by Logan Woodworth
Eibach Sportline Spring SetOne way to give your vehicle an updated and sportier look is to replace your factory springs with lowering springs. Although you can expect a stiffer ride, lowering a car will improve handing and steering response. 
                                                                                     
What often gets overlooked is the shocks and struts (dampers) and how lowering springs affect their performance and fit. Each damper has a specific travel length which is matched with the spring rate of the car's O.E. springs. When you install shorter springs, the O.E. damper may "bottom out" and become daH&R Touring Cup Suspension Kitmaged. For this reason, it is recommended to match your new shorter "sport" springs with the correct "sport" dampers. To better understand dampers, take a look at our tech article titled "Damper Dynamics."

One way to ensure that your new sport springs will match the performance of your new dampers is to purchase a spring/damper kit. These kits are engineered to provide optimal spring rate and dampening stiffness for your vehicle which takes out some of the guesswork in matching your suspension components.

For more information on lowering, read "A Look at Lowering."
Porsche Cayman Lowered

The Necessity of Aftermarket Shocks / Struts

Wednesday, May 25, 2011 by Marshall Wisler
Since their inception into the market, the 2011 Mustang GT and the 5th Generation 2010+ Camaro have attracted much attention, and I must note I too fell prey to their new designs.

In February, I took ownership of a 2011 Mustang GT 5.0 6-speed. The only options on my car were the Brembo performance brake and wheel package and the 3.73 rear gears. I wanted the fastest base Mustang GT I could buy, but yet even that was not without room for improvement.

My first step toward correcting the lackluster steering response and turn-in feel was to replace the spring and strut / shock assemblies. My components of choice were the off-the-shelf 2011 Mustang GT Eibach Pro-Kit Spring Set and a set of 2010 Mustang GT model Bilstein struts and shocks. Although Bilstein does not yet have a 2011 Mustang GT specific fitment at this time, the use of 2005-2010 Ford Racing strut mounts and the 2010 model Bilstein struts allowed me to successfully use the components. For a more plug and play application and a user friendly guaranteed fitment, consumers can purchase the matching Eibach Pro-Damper Kit which is specifically tuned for Eibach springs on the 2011 models and bolts up without any modification to the strut mount units.

Strut Rod Diameter
Although the Eibach springs are not the stiffest available, their progressive rate is far beyond the factory rate of 150lbs/in. For that reason, it is important to increase the compression and rebound rates of the shock assemblies, not only to increase the life of the shock, but also to increase performance while cornering, and reduce unfavorable motion on transitions and rough surfaces.

At left is a picture of the factory 2011 Mustang GT front strut and its Bilstein rival. The differences in shaft size should be obvious. Upon installing this aftermarket suspension package, my 2011 GT feels like an entirely new car. It doesn't exhibit the floating feeling associated with the stock pieces, and generally feels firmer and more responsive. The steering inputs are met with crisp turn-in and the car behaves very neutral at the limit, which left me quite surprised.

For questions on suspension and more, contact one of our sales specialists.

Bouncing along? Need new shocks?

Saturday, May 14, 2011 by Hunter Leffel
KYB GR-2 ShockHas your chariot lost some of that new car handling and ride? Do you feel like you're on a trampoline after hitting a bump? It might be time to get new shocks and struts (dampers) for your car, truck or SUV. 

Tire Rack offers a wide range of options from Original Equipment style replacements to performance upgrades. The KYB GR-2 line will firm up the ride 5-10% over factory new. KONI and Bilstein offer higher performance options — some with adjustability to give you that "on rails" feeling.

Look to the professionals at Tire Rack for all of your suspension needs. View specs, shock absorber reviews, and pricing for your specific vehicle.