Ring and pinion - help reading pattern

[talbotdd]

Hey everyone,

I am working on my first ever attempt at changing the gear set in my GM 8.5 10 bolt. I am having trouble reading my pattern.
I tried using the Ratech pinion depth tool to set pinion depth without much success. Even taking 8 measurements and averaging them left me a little unsure. My jegs kit came with the following shims:
(3) .020
(1) .028
(2) .029
(1) .032
(1) .039
(2) .041

According to the Ratech tool the .032 was too shallow by .005 so I went with the .039 since that was my only close choice.

Anyway, here is my pattern with the .039 shim. Backlash is at .007 right now


Drive side:





Coast side:






Any tips on where to go from here? My interpretation is that I am close, but may need a slightly larger shim. Any input you have would be greatly appreciated.


Thanks,
Dustin