Quote:
Originally Posted by Charlie Stephens
First check and be sure what you have. If the existing rear end is in good shape I don't think the change from 3.78 to 3.54 would be worth while, but that is based on my use of my car and I don't know how you are using yours.
Charlie Stephens
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This is good advice. May be hard to check with everything together, but by taking off the turtle and using a paint pen to mark the driveshaft and then chalk the tire at 12:00 o'clock.
Count the rotations. A little more than 4 spins of the drive shaft and one of the tire are 4.11's and just over 3 3/4's rotations of the driveshaft and one of tire you have 3.78's.