Urgent! Gear Pattern Check
05-25-2011, 06:58 AM
#21
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Something is off, you shouldn't jump from a 30 to a 20, and then check with a sloppy bl. 30 to 20 is a huge jump . .
As said by Turbostang, keep the bl to .008 or .009, not 11 and 12
Bring the bl to 008/009 and with the 25 shim and see how it is then
As said by Turbostang, keep the bl to .008 or .009, not 11 and 12
Bring the bl to 008/009 and with the 25 shim and see how it is then
05-25-2011, 09:22 PM
#22
When I set up my 7.5 I found that the pinion shims in the Richmond kit had a too small ID and were sitting on the radius of the pinion shaft to the gear. I didn't catch it right away and I was getting a good pattern with way too thin of a shim because the pinion set up bearing was not seated all the way. Once I figured out what was happening I ended up with a shim that was very close to the one GM put in.
