Low ratio steering boxes

Oldmanmopar said
Replace your lower control arm bushings with new OEM rubber style for the correct model year. 73 and later cars take different strut rod bushings then 67-72 due to different length strut rods on later A-bodies. Most alignment shops won't see worn out bushings, But your car will wonder when going straight.

I did convert the car to '73 and up disc brakes and put in heavy duty torsion bars. I used the original lower arms though but I think that's ok. Both of those were HUGE improvements! Now that I know I already have a LR box I'll be looking into worn parts and on.