BAH!!! They(aftermarket) is not very considerate to our old Dodges. They were very well designed machines, for the most part. Mechanically, they are pretty indestructible with proper maintainence. As they get older, though, their components are heavily sought for due to their reliability, so the components are still available to repair them, you just have to know where to look. This older type hub was pretty rare, even into the 80s, so there's not a whole lot of them floating around. Sometimes, you have to look for the parts for a Dana 70. Any old school off roader will know what these are, though. You might give Randy's Ring and Pinion a call, too. They may have 'em a little cheaper. Orielly's might can get them, too, as well as Napa. Good luck!!