I always thought there were issues surrounding LTs and and auto trans. I have never had one so I don't know.
However, the MAC LTs are a few inches longer than the BBK LTs. Mismatching those components may not work. Again, I have never tried so I would try to find someone who has. I have see BBK LTs and a Mac prochamber, but never the other way around.
Hope it works out for ya..........