View 3 Photos View 0 Videos Dana-Spicer 190F-4429A Rear Differential for a 2001 Mack RD688S Recently Updated Contact for price (Used) 2001 Mack RD688S, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Serial Number: 20003945, Make: Spicer/Dana, Model: 190F-4429A, Hub Bolts: 10, Brake Type: Drum, For more information about... ConditionUsedFits To Make(s)MackFits To Model(s)RD688SWill Fit Year(s)2001Stock NumberP-56085 MLS Number12234378CategoryDifferentials, Rear Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info