[blykins]

A .82 overdrive short input shaft TKO 600 would be the best choice for you.

You only have a few choices when it comes to 5-speed boxes: A T-5, TKO, or Richmond. The T-5 in its stock form wouldn't last long and the Richmond is just too expensive for what you get.

Going from a big input Toploader, any of these small input boxes will require a clutch disc change, if not a pressure plate change as well.

If you'd like some further information, just let me know...but the bread and butter is:

Things you have to change:

1. Transmission
2. Clutch and clutch fork
3. Shifter handle
4. Possibly a relocation/modification of the transmission mount.