Give your 2007.5-2010 Chevy/GMC 6.6L LMM Duramax the Ring & Pinion set you need to re-gear for your new wheel & tire combo. The gear sets offered range from 3.31 to 5.38 to fit the needs of most applications. Rear differential as well as front differential gear sets are offered. Find high-quality brands like Nitro, Dorman, USA Standard, and Yukon for gear and axle components.
