SS only? or is it also 2LT? Next pay I'm going to a pick and pull to hunt for hubs, calipers and mounts. Is there anything else I can scavenge them from?

 

You need the whole ss rear axle, no caliper mounts on ls/lt. You can try a cobalt axle with discs, easier to find. And you need the brake flex lines and parking brake. I havent done it myself, so there could be more.

 

Many threads on this subject, I used a 2005 saturn Ion redline rear end, you can use cobalt ss, hhr ss, or ion redline, rear axle. all you need is the rear beam fully loaded which means it comes with calipers, and hubs and everything, same hubs in both axles so that realy doesn't matter, except if your car does not have abs, mine did so it was plug and play. easy intalll with about 2 bolts on each side, one on the chasis and one one the bottom of the shock, and disconecting brake lines. it should only take a hour or so if you are handy and are comfortable with working with brakes.