Somebody gimme a quick run down on what special will be needed. It's no time soon and may never happend, but if it's easier than I think, it may. Details decided on: I would like to use a pickup axle so I won't need spacers to get the wider rear track. I understand the spring perches and shock mounts will have to be relocated. I'm also considering moving to a rear cv driveshaft when the axle goes in so the perches and shock mounts can be pre-located before assembly. Will I need any special u-joint for the 12 bolt? Can I still use the springs on the truck, just with new u-bolts? Is there such thing as a ff 12 bolt? Will my current 15" wheels fit the 12 bolt drums? Will my 84 e-brake cable work with the 12 bolt drums? I have a shop nearby that could probably do all this which I why I ask. They are only 10 minutes down the road so giving them the reigns is no problem. I just want to know what all I'll need ahead of time. The junkyard axle, new driveshaft, and new brake lines are all I can think of.