I've heard two different comments re: an adaptor plate. Here's why...
The most ideal swap is to bolt an 88 or earlier S10 tailshaft to a V8 camaro box (commonly referred to as a "hybrid" swap). You will get a stronger gear set and a taller OD ratio. The input shaft to the tranny will have fine splines, and will NOT work with the stock clutch plate, so you will have to get a new clutch plate, but everything else for the transmission will bolt right up.
If you use a complete T5 from an S10, you WILL need an adaptor plate, because the input shaft is about 3/4" to long and the splines on the input shaft do not extend far back on the shaft enough. The T5 transmission WILL have coarse splines on the input shaft, so you should be able to use a stock clutch plate.
It's worth the time to find a tailshaft with a mecanical speedo drive, as an adaptor to make an electronic drive work with a mechanical speedo will run you about $350.
How do I know? I just completed this very same swap last week.
Caution - once you do the swap, you will want to drive the truck ALL THE TIME. It's a different truck, MUCH more pleasant to drive, and a hell of a lot more practical.
Chris
