been there done that got the t-shirt tech. the hi-boy's ran a small design of u joint i upgraded to a gm corprate rear transfer yoke off a gm and a 4 1/2 rear driveshaft SPICER BLUE joints is the only way to go but i have heard that borg warner has sold the spicer line so i guess we are all up in the air on joints also take the spacers out from between the springs and rearend and the small 1" spacer from between the springs.reduce the front spring pack to one main leaf good shocks 33" trxus super swamper all-terrains and you'll have your driveline taken care of. now start behind the drivers door to about 3' back boxing the frame this is where these frames like to bow and this will take care of that. slipper clutch you will not regret it you will go through hundreds of regular clutches vs. one slipper ( sintered iron ) ram makes a good twin disk one. now you are nearly bullit proof build as many ponies as you can afford once the truck is set up and see what she'll do good luck and never get angry cause you didn't win but be happy that you are able to try