Hy MaddMatthew, welcome, tranny choice depends on how hard you intend to work your truck. For example a T5 would be too light duty, an NV4500 might be strong enough for what you intend to do, or any of the older Clark, Spicer, or New Process trannies, if you can find one with overdrive. I'm sure there are other choices out there that I'm unaware of because they are too new, good luck with your search, hope that helps.
