View 6 Photos View 0 Videos 1992 Meritor-Rockwell RR20140 Rear Axle Housing for a Peterbilt 377 $850 USD Rockwell Rear Axle Housing, RR20140, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, 53.5" Inner Flange To Inner Flange, STD Track. P/N A3121N1730, Removed From 1992 Peterbilt Low... ConditionUsedFits To Make(s)PETERBILTFits To Model(s)377Stock Number763-12 MLS Number13887512CategoryAxle Housings, Rear Last Updated4/25/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info