Be careful when ordering these. I've read posts elsewhere that suggest that the stock A-body brake backing plates and drums won't work correctly with them. One post (wish I could remember where I read it I'd post it hear for all to read, problem is I also read stuff on other forums) said he ordered these and they went in the A-body rear fine and produced the correct offset but I forget exactly what the problem with the brakes was but anyway he ended up switching to 11x2-1/2 " brakes before it was done to get it to fit.
All in all when he was done it was a great setup. Just alot more work than he anticipated.
If anyone can shed more light that would be great because I wouldn't mind switching to a set of these axles someday.