claude, I used 4" steal tube to raise my 51 up, theres some pictures onthe bottum of my post,as soon as I can I'll get some more pics. of the bed. I had to raise my floor in the bed up about 3" to clear the kick up of the frame in the rear, other than that things went together fairly easy, I went with 2" spacers on the front wheels and I'm putting a 4x4 s-10 rear end in to widen the back I hope this helps