lockone
+1y
What year is your truck? I see a 92 model in your garage so I will answer as if we are talking about that truck.
Your best bet is going to be to narrowing the rear axle to run 6 wheels on this 92.
When you narrow the axle you are going to have to make some changes to the rear frame on the truck. I would build a new back half if it were mine that way you can keep the tank in the same spot and build all of your hangers to accommodate your link system. The room you have around the tank, frame, and axle on the drivers side is going to determine the link setup that will be the best for you. From what I can remember there is not alot of room there when you narrow the axle, so if you build a new back frame section you may be able to mount a link bar on the outside of the tank and still get clearance for the bar to mount to the axle without hitting the wheel/tires.