Holy hell, nobody around here knows how to align the rear end. I finally found a high end hot rod/custom build/restoration shop that did a great job. But pricy as shit.
They did front and back since virtually every part is new.
The rationale is that the rear toe adjustment is time consuming. I know this to be true.
I drove it there yesterday. Felt like it was going to spin out, flip over, burst into flames.
Drove back solid as a rock. After five years, I can drive it.
