Just replaced my 57s oil pump & drive rod in chassis. You need 3 hands to assemble it all! Anyway, a question; while difficult to tell when working underneath the car, it appears that the drive rod only engages the distributor by possibly as little as 3/8". Is that normal? The new rod appeared to be the same length as the used one, which showed noticeable wear on the Hex.. Info appreciated, thanks.

Paul