3 0 1992 Meritor-Rockwell RR20140 Rear Differential for a Peterbilt 377 Newly Listed $500 USD RR20140 - 3.42 Ratio - Pullout. DIFF ONLY, HOUSING SOLD SEPARATELY ConditionUsedRear End3.42 ratioFits To Make(s)PeterbiltFits To Model(s)377Stock Number763-4 MLS Number13887510CategoryDifferentials, Rear Last Updated10/15/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info