View 7 Photos View 0 Videos Dana-Spicer RSP41 Rear Differential for a 2013 Kenworth T660 Contact for price Spicer RSP41 Rear differential complete. Ratio 3.70. Call for details we ship everywhere., Ratio: 3.70 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T660Will Fit Year(s)2013Stock NumberKW-0651-7 MLS Number10815111CategoryDifferentials, Rear Last Updated6/13/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info