Quote:
Originally Posted by BIG BLOCK JIMMY
I have unknown angled shim blocks on the rear axle and none on the front. Do these have to match or can I just slap some 6.5 degree shims on the front?
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The rear angle shim block is there to make sure your pinion angle is exactly the same as the angle of your transmission. This is so the angle of your front U-joint is the same as the rear U-joint.
You already have 3 degrees of caster built into your front end from the factory. What you want is an angled shim of 3 1/2 degrees. This will give you a total of 6 1/2 degrees.