I’m sure the DoctorDiff hangers are fine. The oval tracks are supposed to move the axle back, but it’s only supposed to be a 1/2”.
All the other spring choices for handling cars are more expensive. Hotchkis springs are pricey, and they’ve had some ride height issues as well. Bergman Autocraft sells a custom set of Eaton springs with a 130 lb/in rate that Peter Bergman spec’d out. They’d be my first choice, they’re high quality springs. But again, expensive.
It’s a damn shame AFCO stopped making the 120 lb/in Chrysler springs. Pretty sure that was a licensing issue because MP started back up with the oval tracks at the same time AFCO cut production on the 120 lb/in version of their springs. The AFCO’s are great, I’ve bought a set of the oval tracks recently too and they don’t compare. I may be in the same boat, I haven’t installed the oval tracks on my Dart yet.
Drag race only. They suck for anything else.
