i have a 489 case that had 4:10 gears and a cone suregrip, both of which at junk( the pin in the sure grip broke and the pinion gear lost a tooth) I have a powr-lok and brand new Richmond 4:30s for it, my question is mostly about pinion depth. The 4:10s did not have a shim between the bearing and pinion head but did have a .032 shim between the case and bearing race. The new Richmond gear doesn’t have the expected +\- 1-2-3etc but has a 2.763” on the end (see picture). I DO NOT have pinion depth check equipment, so do I just reuse the shim between the race & the case and hope for the best? Thanks for any help you can give.
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