Rear gear ratio
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
http://tri-5.chevyrides.com/rpm.php
with 225/70/15 's it looks like 3.73's
that doesn't account for any slip though.
If you can find the code stamped on the differential housing, this will help you id it.
http://corvette-world.com/corvette_1...tification.php
with 225/70/15 's it looks like 3.73's
that doesn't account for any slip though.
If you can find the code stamped on the differential housing, this will help you id it.
http://corvette-world.com/corvette_1...tification.php
Last edited by johnt365; Oct 24, 2011 at 06:11 PM.
Intermediate
Joined: Sep 2007
Posts: 49
Likes: 1
Another way, which I don't recall exactly, is to put both the car's rear wheels up with jack stands or floor jack, put her in neutral, then turn one tire and count the number of times the driveshaft turns. If the one 360 degree revolution of the tire causes your drive shaft to turn 3.56 times around, then you have a 3.56 rear end. Works for stick or auto. Is this correct, guys?
Le Mans Master
Joined: Sep 2004
Posts: 5,116
Likes: 5
From: Livonia MI
I'm with "johnt", as owned several 3.73 cars and about 3400 rpm at 70 mph cruising with torque converter slip. Have such a car now with 700R4 lock up 0.70 od, and about 2300 rpm at 70 mph. Pretty nice having the od, if you can build the tranny strong enough.
