Hey guys I’m hoping to get my wagon back up on a rack pretty soon and put the new gas tank in. The car has had a ford 9 inch in it for years but has sat in my dads garage and never moved. It’s a 4 speed so I need parking brake which isn’t hooked up at the moment. I’d eventually like to do a disc brake conversion but that will be down the road. I haven’t looked into this at all yet. How hard is it to do or is it even possible to get the factory GM stuff to work on a 9 inch? Is there a conversion kit available or anything? Thanks for your time