...Here's the trick.
Go find the axle you want to use....
then find the springs you want to use.
and figure out how to put them on the truck!
buying a "SOLID AXLE CONVERSION KIT" isn't the best way to do it. It is however the best way to waste money....
Also I wouldn't give "All Pro" a dime of my money....
Do some research, do the work yourself...... this way it gets done right and doesn't cost you more than you paid for the truck.
here is a bunch of pics you can look at for refference.
He, Nate, decided to use a Toyota 8" axle from an '85 Toyota. He swapped the tubes and rotated the Diff.
He also fabbed up his own High steer crossover.
Stage 1
almost done