Automatic to manual conversion.

S-10 T-5's put the shifter in the wrong spot and although the internals are the same, the lack of term 'World Class' makes them weaker and the gearing isn't favorable. Your gonna be looking for a 'World Class' Mustang trans as a benchmark. IF you go that route.

Here is an index:

Identification Key to Borg-Warner T5 transmission ID Tags