Well Mike, you've picked just about the most popular truck to modify. As such, there's about a ton and a half of information out there and just about every kind of system has been tried. Get a copy of the Dec. 2003 "Classic Truck" magazine. They've got an article in there on engine/trans swap hardware for your very truck. There are all kinds of ads in there for various suspension systems/swaps. Contact the vendors for material on their's and study it. After doing that research you'll begin to form an idea of what works well. To tap on Joe's suggestion, there are several Mopar based products that have proven to be reliable and stout enough to do the job, and don't require the same level of "fussing" that a properly done clip swap would.