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I have the rear suspension and axle stripped out of my 1979 L82 four speed. I have no idea what the previous owner did but when I bought the car some 25 years ago it was very obvious that their fingers had been in a lot of places and not in a good way. Anyhow getting back to my question, my hope is to fit a 5 speed in about a year and to get the gearing correct to bring my highway revs down to about 2000 at 60mph I need to determine the back axle ratio so how do I do that. Thanks
Pete
Turn the axle exactly 1 revolution while counting the number of times the pinion rotates. If it goes 3 1/2 times you have a 3.55 if it goes 3 3/4 times you have a 3.70. 3 times a 3.08 and so on.
Turn the axle exactly 1 revolution while counting the number of times the pinion rotates. If it goes 3 1/2 times you have a 3.55 if it goes 3 3/4 times you have a 3.70. 3 times a 3.08 and so on.
Thanks that is easy enough to do. I appreciate you sharing.
Okay it is a 3.7 is that typical for a 1979 L82 4 speed. If so it is probably the original axle. Can anybody enlighten me on that question, again thank you
Yes it is. You can also look at the numbers on the bottom flange of the housing and see the code on the housing. This will tell if it is original. It should be OJ stamped into the housing.
I may as well change the oil while the unit is out, what is the best oil that vette guys would recommend for these. The axle feels pretty good no slop or clunking. Thanks again.
Need help identifying rear axle
