Hey guys, just following your posts here, look at the inside of the thinner(domed) spacer, it has serrations on it to grab the upper arm mounting shaft studs, them the dished spacer goes on the outsideof that. I believe it is 2 parts so it can correct it self to lay flat when allignmnet shims are used?
By the way, here is the crossmember I built.
http://67-72chevytrucks.com/vboard/s...d.php?t=228976