Pinion angle....with pics

Measure off the output shaft of trans and pinion. Compare... That's it.

Leveling the car doesn't matter. IMO, leave the car on the ground. When you jack it up on the center section, you may be altering the angle the rear actually sit at in a static state.

Put the angle finder where the pinion snubber would mount to get that angle. Hopefully it is machined properly.

Nice Fish!!!!