Motive Gear Stock Performance Ring & Pinion Series. Chrysler 2001-2010. 8 Inch, 4.56 Ratio (Front). 9 Inch, 4.56 Ratio (Rear). Brand new got them in 2021 for a 2005 Dodge Ram, just never got around to it then sold the truck. Have been sitting in my bedroom in original boxing and shipping box. $450 for complete front and rear set.