View 8 Photos View 0 Videos Dana-Spicer RSP 40 Rear Differential for a 2011 Kenworth T660 Contact for price (Used) 2011 Kenworth T660, REAR DIFFERENTIAL GEARS ONLY- Part Number: 511329, Serial Number: HN03490495, Make: Spicer/Dana, Model: DSP40, Location: Rear, Capacity: 20,000Lbs, Ratio:... ConditionUsedRear End3.55 ratioFits To Make(s)KenworthFits To Model(s)T660Will Fit Year(s)2011Part Number511329Stock NumberP-86530 MLS Number13066975CategoryDifferentials, Rear Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Dana-Spicer RSP 40 Rear Differential for a 2015 Kenworth T680 Contact for price (Used) 2015 Kenworth T680, TANDEM REAR- Make: Spicer, Model: RSP40, Ratio: 2.64, Serial Number: HNO4515459, Hub Bolts: 10, Brake Type: Air Wedge, For more information about this item, give... ConditionUsedRear End2.64 ratioFits To Make(s)KenworthFits To Model(s)T680Will Fit Year(s)2015Part Number511323Stock NumberP-30732 MLS Number11469337CategoryDifferentials, Rear Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info