A huge variety of Ring & Pinion sets are available for you to re-gear your 2007.5-2018 Dodge Ram 6.7L Diesel. Ratios ranging from 3.31 all the way up to 5.38 are available for most applications. There are numerous options available for front and rear differentials on your vehicle. Find high-quality brands like Nitro, Dorman, USA Standard, and Yukon for gear and axle components.