the 4.0 will bolt up to an early 91/92 Rodeo 5-spd or an 2.8 Trooper 5-spd, the Isuzu V6 5spd bellhousing pattern is different than our 4L30E. Also if your wanting to run the 4L30, you'd have to figure out the electronics to control the transmission, as far as the TOD case being used on a 5spd, that would be on the AR5 5spd from the late Trooper and it's bellhousing isn't the same as the 4L30E either. Now you'd have to get a custom flywheel/clutch made to mate everything together if you used an early MUA5 trans and they are strong. IMO I don't think the 4.0 swap is worth it aside from the "cool" factor, also you have to look into starter mounting. You could grab a small block chevy or 4.3 V6 and a 2.8/3.1 V6 Isuzu manual, run a fiero adapter and one of their clutches and be set. As far as the Diesel's, that was the 1st gen Troop from 86-88 here in the states and that motor sucks, a good swap would be the 2.8 or 3.1 turbo-diesel from overseas, I myself would prefer the 2.8 because it has a mechanical injection pump and would make the swap easier. there was also a guy that swapped in a early 90's TBI Caddy V8 into a Troop, it's an option too but I think there are better motors out there
http://myweb.cableone.net/bcanderson...c/cadillac.htm
The 5.3 V8 from the FWD GM's has the 60-degree bellhousing pattern as well but again, no bosses for the starter on the block so you would have to rig something up for that, but it is also somewhat shorter which gives us more room. They use a shorter snout on the crankshaft and a snug accessory drive to clear everything in the FWD cars