Quote:
Originally Posted by aussie69
i cant find anything on the net that resembles the rear cover?
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Really? I googled images for "gm 8.2 10 bolt", and got several pictures that resembled the rear cover in you photo. If it is original to the car, I'll bet it is a 2.73 non-posi. You can clean the axle tube and get more information. Chevellestuff.net has decoding information.