what would happen if you over correct castor.

Let's say you install a 2" lift, and people recommend 3 degree castor correction.

What happens if you go 6 degrees?

 

The goal is to optimize angles and stay true to form. We don't want any vibration or extra strain.
3 is pretty close to your needs, with 2". 6 is close to angling you the other way. I'm at 6 degree with near 5". I actually cut my wrist off and welded at desired position. Figured from there and had some made up. 6 was close.