i want to get double adjustable uppers and set the pinion angle where i want it. when i go to install lowers, will i have to readjust the pinion angle?
Mark I'm getting rid of my JD's uppers $110 shipped, I am working with some one on my radial set-up and he wants me to test his out, or I wouldn't get rid of them. I have 6 passes on them before the car came apart...
As long as you get a lower that has the same geometry as the stocker you should not have to change it but it is always best to check.
Aways check the pinion angle when you change anything. I have the megabyte jr lowers, and my angle was pretty far off. Adjusting the uppers made a big difference in traction. Also remember that the type of bushings matters too and the softer or more the bushings deflect, the more neg angle you should use.