1 0 Eaton R40-155 Rear Differential for a 2017 Peterbilt 579 Contact for price D-40-155 MILES 841677, Ratio: 293 ConditionUsedRear End2.93 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number446037-4 MLS Number12966714CategoryDifferentials, Rear Last Updated12/21/2024 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info