How do you rebuild a rear end on a 1976 Chevy Nova?

To rebuild the rear end of a 1976 Chevy Nova, start by safely lifting the vehicle and removing the rear wheels and brake components. Drain the differential fluid and remove the rear cover to access the gears and carrier. Inspect and replace worn components such as bearings, seals, and the ring and pinion gear if necessary. Finally, reassemble the rear end with new gaskets and fluid, ensuring proper torque specifications are followed.