12 bolt Stock rebuild question

[Furno68C20]

Truck is a 67 c10 stock 12 bolt. I'm not changing the 3:73 gears, going to reuse them because there in good shape but changing all bearings on the rear end: Pinion front rear bearing, carrier bearings lip seals and axel bearings and crush sleeve.

Since i had a good pattern before taking apart can i just use the same shims and spacers with the new bearings?

I know guys bore out the pinion bearing to slide on and off the pin to set the depth but in my case I cut up the old bearing getting it off.

Also, having a hard time finding axel bearings. Looking to stay with National or GM. Any thoughts or recommendations.

Thank you in advance.