1968 A-Body suspension question?

Welcome to the board. I guess this is the set up you're talking about:
http://www.forabodiesonly.com/forums/album_pic.php?pic_id=208
Hope that link worked. I put it on my 72 Duster, but still haven't got to see how well it works since my Duster is in Hawaii and I'm now in Vegas. It's a simple upgrade and you get to use the big Cordoba rotors. Should have no problem stopping an A-body.

As far as the LCA, just make sure you get a set from a 72 or earlier. The position of the tab on the 73-up LCA are in a different location. You can get a sway bar kit from just about any suspension company, you just might have to drill a couple of hole in the K-member if yours doesn't have them for the sway bar mounts.

For the rear I would look for an 8 3/4 and buy aftermarket axles with the big bolt pattern. Or you could get an 8 1/4 from a 73-up A-body that would just bolt in and already have the big bolt pattern.