1971 GMC Jimmy Bore: 1.125 In.; Moraine Brakes; w/Power Brakes;. 1972 GMC Jimmy Bore: 1.125 In.; Moraine Brakes; w/Power Brakes;. Part Type: Brake Master Cylinder Repair Kit. Manufacturer: Dorman. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in theCompatibility Table.
