What is the best way to adjust adjustable control arms to correct pinion angle?

[abouttobeglue]

My buddy is going to help me check my pinion angle and adjust my core 4x4 arms to try and dial out the rear end wobble starting around 55 60mph I've had for awhile. Ive had relocation brackets and the arms for a couple of years, and they've been at the stock length. He's got wheel cribs, so we can mimic a four post, do you leave the upper connected and do the lower first, looking for the best way to get adjust if needed.

 

[Bigskyroadglide]

If you are adjusting pinion angle only should adjust the upper. Lower has little to do with that measurement


I'd double check your squareness, that will require you to mess with lowers if not square.

 

[abouttobeglue]

Appreciate the help, any certain degree to aim for, or as long as it's + and minus the same it's all good

 

[Wild one]

Appreciate the help, any certain degree to aim for, or as long as it's + and minus the same it's all good

About 1.5 degrees down on the pinion.