The gen 1 89/90 Manual trans is a bit beefier than the one behind the 4 cyl. Not sure about the # designation on the v6 gen1 manual trans.

Man trans was avail in the gen 2's in the US. I've seen them but they're rare.

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..