I boughta 66 F85. It was in pieces. I am not sure that I have the correct rear upper control arms. What are the measurements for 64-67 and 68-72? It looks to me like the lowers are the same but the uppers are different. Thank you

 

yes, 66-7 rear upper arms are longer than 68-72.

 

I figured there was a difference in length.
Do you have measurements of both?

 

Looks like the shorter (later) upper arms are 10-1/4" CENTER-TO-CENTER b/n the front and rear bolt holes.

 

Thank you that helps.

 

By a quick tape measure measurement, 10-1/8" vs. 12-3/4" for the early arms.