Was given a heap of mini parts out of a shed on a property and a gearbox was part of the lot, was apparently out of a cooper/s but not sure of the numbers....
the casing had the following numbers....
casting number is 22GH28 and stamped with 5/1299/2
Edit- Nevermind, I cleaned more dirt and found it is actually 22G1128, so it's a 4 syncro at least...so could have come out of an S
Another part was an old front fibreglass spoiler similiar to a post that someone on here put up recently....
Will have to get some pics....as one of the SUs has something like a plenum of it that I have never seen before....