.maybe if you used the same manufacturer, but from what I have seen they are not even close. and if it was on a bench would make a huge difference from being in a car. I just don't see it anyway. I would have to see it
It wouldn't matter. Pre-set the pinion depth and backlash for each gear set. Only needs pattern check and set-up once.Then remove the spare set(s). Either use the same spool or keep each spool/ring gear as a unit. Save the pinion shim pack, right and left side shim packs with that gear set. Remove and install all components together. The real ticket is the spare spool that way the side bearings and side shims are pre-installed. To swap pull the caps and spool. Pull the pinion. Knock the rear pinion race out, swap pinion shims and race. Install pinion and spool, done
Doug
