I initially bought the QA1 strut rods. At the same time I replaced my LCA's, UCA's, and even the K-member. The QA1 LCA's on my 70 Duster (as well as the OE LCA's) have the strut rod opening at 5/8". The LCA end of the QA1 strut rod is only 9/16". Because the QA1 strut rod is smaller than the LCA opening even after tightening the rod could move around causing noise and eventually wallow out the hole. I returned the QA1 rods to Summit and bought the rods from PST. Those rods are correct.
