5 0 1992 Meritor-Rockwell RR20140 Rear Axle Housing for a Peterbilt 377 $1,250 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, S/N AVN92021265. Removed From 1992... ConditionUsedFits To Make(s)PETERBILTFits To Model(s)377Stock Number763-12 MLS Number13887512CategoryAxle Housings, Rear Last Updated10/29/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info