Join Date: May 2002
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Re: What year???
If they are 86 or newer, and haven't been swaped they should be 3.73's
Crude test for ratios:
Lock down one axle/tire, (wire, hold it, just jack up one side, whatever)
Mark the pinion position.
Rotate the other axle 2 Two rotations.
Count the number of rotations the pinion makes. This number should come to about 3-3/4 rotations on a 3.73
If its almost four, it's a a 3.90, a bit over four, 4.11, etc...
If it has a locker, you won't be able to rotate just one axle/wheel and you only rotate the tire/axle ONCE.