For those that don't know, I have been running the Goodyear Wrangler DuraTrac tires for the last two years. I have only about 35,000 miles on them, and they have approximately 50% tread depth remaining, but they were 315/70R17 (about 35" by 12.5") and I wanted to put larger tires on my Jeep. The General Grabber X3 (with red letters) was my choice in the 37x12.50R17 size.
This tire has a very aggressive tread pattern with good side biting lugs, and the description for this tire is highly accurate, as seen below:
"The Grabber X3 utilizes a robust off-road tread compound molded into a high void, symmetric pattern featuring block chamfers and traction notches for grip in loose surfaces. Evacuation channels clear mud from the tread, while stone bumpers at the base of the grooves help to release stone and debris. Full-depth sipes improve wet and wintertime traction throughout the tire's life*, and the multi-pitch tread block design minimizes the drone of pattern-generated noise to create a more comfortable on-road driving experience. Internal construction of the Grabber X3 features General's DURAGEN technology, which consists of a three-ply body casing and twin ultra-high strength steel belts for durability off-road and on. Externally, Sidewall Protection Lugs and Deflection Ribs help defend the tire body and upper sidewall area from punctures while traversing harsh terrain."
* While we normally warn customers who are purchasing Off-Road Maximum Traction tires that the large block tread designs and relative lack of sipes can make driving on ice and hard packed snow quite difficult, I have found the tires to be superior to other mud tires I have driven in snow.
As far as deep snow goes, the Grabber X3s are a blast to drive on. The only traction issues I've had (in northern Indiana) with these so far is stopping on ice, which is expected to be an issue, but again they really aren't as bad as most mud tires. They have only slightly slower/longer snow and ice acceleration and stopping times over my old DuraTracs. Oddly enough, the lateral traction (resistance to sliding sideways) seems even better than before. Of course, there are many factors that could influence this, including increased size, increased weight, reduced effective torque to the drive wheels, etc. However, I am very pleased with my purchase, and I think the tires not only look awesome, but also meet or exceed my expectations for ride quality and handling.