View 0 Photos View 0 Videos 2015 Eaton R40-170 Rear Differential for a Peterbilt 567 Newly Listed $2,420 USD (USED) Eaton R40-170 Ratio: 3.91 Side Gear Splines: 46 W/ Locker: YES Cast#: VERIFY ConditionUsedFits To Make(s)PeterbiltFits To Model(s)567Stock Number25967337 MLS Number14267970CategoryDifferentials, Rear Last Updated3/26/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info