Stock nv3500. Gonna run till she blows then t56 it probably. Seems to be holding up well so far. I dont run super sticky tires, and i put a Eaton trutrac in also. It puts a smile on my face lolYea, ultimately getting away from the leaf springs would be a great option, especially for my intended use of the truck. I'd love to build a watts link, I bet there's a few 10 bolt diff. covers out there that provide pick-up points for a watts link. Then it's just easy simple linkages and brackets. It would also be nice to be able to fine tune rear spring rate as well. It's actually a bit bouncy at low speeds but loaded up it feels awesome.
What 5 speed do you have in your truck?
95 rcsb, L33 5.3, hot cam, frost tune, 5spd, 4/6