chevelleshack· Premium Member
Discussion Starter · #1 ·
Hello fellas , quick question on 12 bolt rear axle . I believe the original 3:31 gear in my ls-5 chevelle has been changed . There are no gm stampings on the ring gear plus it cruises at 60 mph about 3500 rpm , seems a little high to me . Anyway , would like to put an original gm gear back in it & was wondering if there is any difference in the 454 12 bolt gearset vs the 396 version ? Or is it just the yoke that is different between the two ? Also , anyone have a gearset they would like to get rid of ? Prefer nov or dec 69 or jan 70 dates if possible. Thanks !