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  1. Transmission - Rearend
    Hi - i know firebird rear ends swap right in - but nova's seem to have sketchy data on years 75.. I have an 8.5 rear 2.73 - im looking at an axle from a 75 nova - some say they are 7.5 OR 8.5, some say only 8.5.. depending on engine size - is this true? Is there a chance of finding a 7.5 on a...