1997 Prostar 205 Transmission Type???

Its not an issue right now. But when I looked in the manual I tried to find out what transmission is in my 1997 ProStar 205, I couldnt find anything.

It has the standard 350GM motor, not the LT-1. Standard throttle body. Its NOT a powerslot.

Is it Borg Warner? or a Hurth? or something else.