I just moved this from a for sale thread to not hijack....
The 200TDI came from the factory with an LT77S which is the H suffix. Some data here: http://www.red90.ca/rovers/gears.html
Any diesel Defender (long stick) LT77 will fit, but the later suffixes are stronger. Also the 200TDI version has better gearing.
You can also fit a 300TDI R380, but the engine needs to be mounted further forward.
The last option is the stubby bellhousing R380, which allows placement in the stock location.
Ashcrodt have a bunch of info on their site: http://www.ashcroft-transmissions.co...iewCat&catId=4