You've been in this forum about as long as I have. Maybe you didn't see those threads about bent upper arms from wrecked cars, stripped threads at ball joint bungs, etc...
If you buy used, check them closely before spending time and money on them. Good luck
By the way... If you have a pair of known good small ball joint upper arms, the aftermarkets tapered adapter bushings for this larger spindle hole is the most affordable option.
