742 pinion bearing preload ?

I'm working on a 742 I bought locally. The pinion seal was shot so I marked the pinion nut for reference before removal. Pinion also had .010 end play prior to removal and 2 inch lbs rotation drag.
The FSM has no mention of end play spec so I am assuming it should be zero and rotation inch lb spec sets the bearing preload. Is that correct?

It had 3 shims under the forward bearing 2 .020 and 1 .009
I removed 1 .020 shim and now have zero end play 2 inch lb rotation.
Should I remove another shim and recheck?
I don't have a shim kit but can always buy if needed.
Thanks for any info.