so I am getting a bit ahead of myself but I figure if I am going to document any of my research I might as well do it in public to share and help others, so here we go:
Fun Fact: You can drive yourself crazy shopping for ball joints for this conversion! How crazy is up to you, ha ha
case in point, in my imagination I was raised by a grandmother master mechanic who was a firm believer Made in the U.S.A. is better, she had Craftsman, MOOG, and ACDelco tattooed on the small of her back (I'll pause and let you recover from having to picture that) it would break her heart if we were to tell her MOOG is no longer solely made in the USA, but all over the darn world, and the quality varies accordingly!
so I
start my research with MOOG upper control arm ball joints (don't wanna piss off grams)
- O'Reilly's: MOOG Part# K6124 (says it fits 1971) but costs $78 bucks
- AMAZON: MOOG Part# K6124 (says it does NOT fit 1971) but costs only $33 bucks