There was a very interesting 56 series gearbox for sale on ebay in the US recently. From the ratios that were listed, it is a four speed close ratio 'Option 2' gearbox & it came with a butchered bellhousing to fit an MG. No matter as a standard 1200 four speed 56 series case would save it, but not necessarily the 56A case from a B210 or B310. Note that it uses a ball bearing on the front of the cluster.



EDIT, the eBay link & pictures are now dead.

One of our US members bravely bid for it, but was beaten out by someone else with more cash to throw at it. I just hope the buyer realises what he has & doesn't try to use it behind a full house A15 as it could be reduced to scrap in short order.

First gear ratio in these is the same as second gear in a standard four speed, so they are not really suitable for street use unless you have a really low diff ratio & are prepared to sit on a zillion revs at highway speed.

Bad luck Bob, you could have really done some good with it.