3/4-ton LWB to 1/2-ton SWB- Shorten or Swap?

[CircusWagonJim]

The last time I did this 10 years ago I happened to have both a long bed with a nice cab and a short bed with a junk cab and rebuilt chassis. Now I have a 3/4-ton long bed with leafs in the rear and wonder should I shorten this frame and add trailing arms? Keep the leafs and flip the rearend? Or swap to a short bed frame? Can you just add 1/2-ton spindles and brakes to the 3/4 ton or are the control arms different? Trying to go the simplest route since the truck is together and running. When I swapped before neither had any running gear and the short bed frame had already been gone through with a drop kit and disc brakes added- it was a no brainer just to swap. Thanks Jim