[SCOTI]

Originally Posted by Montierth

So do you think in my case maybe get some new 1970 ball joints and compare them to the ball joints in my 70. If the angles are the same then it was a 70 adapter spindle. If not a match then next best guess would be to get a 71-72 ball joints and compare angles? then 73+ ball joint..... geese this was supposed to be simple. Gotta be sherlock on some of this stuff. I really appreciate everyone on here sharing knowledge and helping.

That would be my approach. I would purchase parts for all 3 possibilities from my local parts store w/their buy-in (talk w/a manager). Sort & test the fit. Return what you don't use.

I've had to do it this way more than once trying to sort through what someone else did. It's also a reason I include a folder w/info when I sell a vehicle I've worked on/built.