Quote:
Originally Posted by Alan Roehrich
For the vast majority of OE 12 bolt housings, start with a 0.035" shim on the pinion. Odds are, you'll be within 0.005" of where you need to be. If you're taking a similar gear out, use the shim from the previous pinion, and you'll be within spitting distance.
The numbers they give you are the opinions of the guy running the Gleason machine they test the gears on. What matters is the pattern.
And yeah, unfortunately, Richmond hasn't been great lately, and Motive buying them is quite unlikely to improve that.
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Started doing this a couple of years ago and have good success. Use the old shims and check the pattern and they are usual right on. The only one that I ran across was in a Jeep that a shop tried to setup....it was a mess. Didn't have the old shims took awhile to figure that one.