View 8 Photos View 0 Videos Spicer R40-155 Rear Differential Newly Listed $1,350 USD Good used Spicer R40-155 rear, rear differential assembly. 2.79 ratio. 90 day guarantee for swap or refund ConditionUsedRear End2.79 ratioFits To Make(s)SPICERFits To Model(s)R40-155Stock NumberRyd R40-155/2.79/41 MLS Number14234323CategoryDifferentials, Rear Last Updated3/10/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info