ARMY TM 9-2320-361-24P
This is the TM you need.
2320 is a tactical motorized vehicle. 2330 would be for a trailer. It's based on the first 4 digits of the NSN of the item.
The older 209 series have their place but the 361 are easier to use and better laid out imho.
P at the end of a manual means it is a parts manual.
The numbers before that are the 'level' of maintenance. 10 is user level, 20 is organizational, 30 is direct support, 40 is general support and some items will even have a 50 which is depot level. All this is old days stuff. In the last few years the military went to 2 levels of maintenance but I haven't seen how that changed manual numbers since it happened fairly recently. I do know that manuals for equipment already in service still uses the original numbering system.
When you look it up under group 07 in transmissions, it tells you to go to the transmission TM
TM 9-2520-246-34P
However, the clutch is not in this one. So figuring it's got to be "somewhere", the engine TM is the only other place to go. TM9-2815-210-34P is the engine TM. There ye shall find what you seek.