Guys,
While we're on the subject I replaced my ball joints in the upper control arms. The old ones came out hard. They were the spline type that kind of bite into the control arm. The new ones sort of have tapered concentric ridges. They press in ok but don't stay with weight of the car on them. Seem like they should have been made with a spanner nut or something. I can't find new control arms. (Don't want used because I think I'll have the same problem.) Do people tack weld them in place or something?
CG