22 389 Driveline angles/ ride height

So your engine is 2 degree positive (front higher than back), front drive axle is also 2 degree positive. To get rear/rear drive axle you refer to chart. Chart is for unladen. So your rear/rear is 10.7 +/- 0.5 degree. U-joint operating angles don't care if it's a red or yellow motor, just want angles to cancel each other out to reduce vibrations.

 

When I leave my same set up at factory spec it’s a disaster. I run higher on rear to avoid roaring in trans. Same year as you. Something not done right at assembly. Needed a shim or less a few… was a Covid mask up fogging up safety glasses build, not surprised.