diy adjustable strut rods

The member who posted this on Cbodiesonly was working on a C-body and ended up using a radius rod that was 21.5" long. anyone know the lengths of the strut rods of the C-bodies vs. A-bodies?

Maybe buy all the other parts and then take a measurement? Just an idea since I would like to know this as well but doubt anyone has both an A-Body and C-Body strut rod laying around.