Pinion depth and shims...12 bolt question

[Greg Reimer 7376]

Originally Posted by tj310

I did 2 sets last week .030 .038. gave up on pinion depth setters years ago. ---Trevor PS it's not a 3 series gear going on a 4 series carrier?

In my experiences of setting up rear ends,a 3 series gear set on either a 12 bolt or an 8 1/2" 10 bolt, an.030" pinion shim is usually about perfect. For a 4.11 to a 4.88,use either a.031-.032' shim, and with gears in the 5's or a 6.14, use a .033 shim The small pinions need to be set a little deeper in order to achieve a pattern centered on the ring gear. I probably have set up an honest 100 rear ends in my life.12 bolts are pretty consistant in what shim to use.