Yukon YGK059 Re-Gear Package - 4.56 Ratio

The Yukon YGK059 4.56 Re-Gear Package takes all the guesswork out of re-gearing your 2003-2011 Dodge Ram 2500/3500. Yukon combines a front and rear 4.56 ring & pinion set along with the most complete master overhaul kits on the market, giving you everything needed to re-gear the front and rear differential under one easy part number. Yukon tests each ring and pinion set on a roll stand to make sure the fitment is perfect. The master overhaul kits exclusively use Timken bearings and include everything necessary to install your new gear sets. Yukon backs their ring & pinion kits with a 1 year warranty. 

Fits C9.25" Reverse Front Differential and AA14-11.5" Rear Differential. 

In mid 2011 the design for the pinion bearing changed. 

The early design had a rear pinion race O.D. of 4.125" with a bearing part number HM807046. 

The later design has an O.D. of 4.375" with a bearing part number NP516549. This kit fits the early design.