Hey guys I have update on my rear end swap. Decided to go with a 9"

9" Housing/Axle Package
- New Moser Axles, Axle Bearings, Wheel Studs,& Retainers
- 31 Spline, Choice of Bolt Pattern, 1/2" Studs

- New 31 Spline Trac-Lock Posi with nodular iron and billet case.
- New Motive Performance Gears (Choice of Ratio)
- New Timken USA Bearings
Switching to disc brakes, going with a wilwood set.

One problem I have came to is the spring perch's. I measured over and over on the factory rear. I keep coming up with 8 degree one side and 8.5 degree's on the other. Any of you guys know factory degree or what my spring perch angle should be?