Reverse is a negative speed.
...just go with it.
OP: it's a th350 or turbo 350 as it's otherwise callled.
wrong, wrong, and wrong again....." a negative speed"....lmao!
Speed is expressed as a vector. A vector can have positive or negative values. So, yes, technically I'm correct from an engineer's perspective.
...and I'm sticking to it because I now have a 3 speed myself!