1985 Meritor/Rockwell QR100, Truck Delivery, Axles, Complete Rears, Fits to: GMC BRIGADIER, (Used) 1985 GMC BRIGADIER, COMPLETE REAR DIFFERENTIAL- Make: Meritor, Model: QR100, Ratio: 3.90, Capacity: 21200 lbs, Hub Bolts: 8, Brake Type: Drum, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Ratio 3.90, Serial# TBD, Hub Bolts 8 1GDP8C1Y9FV622651