Originally Posted by
purplegrape
Shocks and pills are the same
what about ball cups, turnbuckles, rear wheels, arms, etc?
All the stuff you and I listed except turnbuckles aren't as most/all of them are shorter on the 4w.
Rear arms are kind of interchangeable. Hinge pin to hinge pin is the same, but the shock has more droop where it mounts on 4w arms and the .1 arms have an extra inner hole. Sway bar mounts are slightly off but compatible.
Not a tons of parts are interchangeable but lots of little parts are. Whats your goal here?