A-body adjustable control arms and pinion angle

[rockytopper]

I posted the question in this thread in the Drive Train section but not sure if it should be here instead.
Thanks
Rocky

https://www.pro-touring.com/forum/showthread.php?p=561051#post561051

[rockytopper]

I'll make this easier simple question. Some suppliers have fixed lowers and adjustable uppers and others offer adjustable uppers and lowers. How should I go about this? Is there any pro's or con's on adjusting the pinion angle using only the upper vers upper and lower adjustable.

[dhutton]

I think that depending on how much adjustment is needed sometimes the wheels can get off center in the wheel opening if you use only the upper arms. Adjustable lower arms would allow you to recenter.

At least this is my understanding. I am sure there is more to it than this alone based on geometry.

[andrewb70]

I think using upper adjustable arms offers enough range. That is what I use.

Andrew