How to set pinion angle with a quick change rear?

[missile07]

Looking for the proper way to set the pinion on a mod with a quick change?

[Egoracing]

Lift arm or pull bar?

[BigBlueFord]

J-bar pinion plate

[LM14]

Difference between driveshaft angle and rearend vertical angle. Doesn't matter what type of rearend it is. For a reference on a QC, you can use the j-bar plate as stated above or the rearenc cover ribs.

SPark

[missile07]

Pull bar....A guy told me a couple of years back a way of doing it off of the back cover plate and subtracting the angle from 90 degrees....or something like that????

[PIERCE3J]

LM 14 is right. Difference between the driveshaft angle and the rearend angle gives a total angle of pinion degrees. Measured at ride height.

[missile07]

But where do you place the angle finder at on the pinion? The j-bar mount? Anyone know of the method of measuring from the back cover plate?

[powerslide]

You do it just like you did on your 9in the other side of the pinion plate. Or like they said you can use the back side of the gear cover because its flat to the pinion. I lay mine across the nuts that actually hold the cover on.