Hi,
I'm looking to install a manual 6 speed on an M119 engine. In looking at examples of conversions, the BMW ZF options seem most popular.

I would prefer a brand new unit and I don't like the adapter plate mounting method.

So a Tremec T56 is a potential option.

I don't see it having been done before. I'm sure it's been considered. Is there a reason why it wouldn't work?

Cheers!
Peter