Wow that is super informative info, Do you know a place to find the short arms? Or is that like a needle in a hay stack kinda deal. I have long ones I need to change for wheels clearance issues. What length are the typical replacements you can buy?
Those ebay arms look like the long ones.
sometimes you can find them on ebay or at swap meets, any of these GM cars like Nova, Ventura, Omega, 71 - 74 will fit, it's the same subframe.
CPP is making replacements but they duplicated the LONG arms!