4 0 Mack CRD151 Rear Differential $2,100 USD Good used Mack CRD151 rear, rear differential assembly. 5.66 ratio. 90 day guarantee for swap or refund ConditionUsedRear End5.66 ratioFits To Make(s)MACKFits To Model(s)CRD151Stock NumberRyd CRD151/5.66/43 MLS Number12159757CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info