I recently purchased a 1980 Firebird Esprit. I have cut out the rear under seat floor pan, both torque boxes, and the rear floor pans. While jacked up I noticed some play in the wheels. Took tire off, drum off, and found lots of oil all over the place. So I am going to replace the seals, might as well do bearings while I'm in there, and planning to replace drum, shoes, hardware and new e brake (which I noticed s totally missing right up to the brake pedal). I am not sure what what rear end is in the car. I don't see a tag or numbers anywhere. I would like to purchase the parts, take the car apart and replace with the new parts right away. How do I know what bearings and seals to purchase.........Short of tearing car apart, and HOPEFULLY finding some numbers, then ordering them, and then waiting for them to be shipped. I have found the following two parts: Centric Bearing: 41364000E and Centric Wheel Seal 41764000. Don't care what brand, just found all the brake parts in Centric so I figure put all the same brand in.

Any help is always greatly appreciated.