Looks like you have the fording cable in the dash, so I will bet the engine has all the fording parts on it. very lucky to even have the plug for the bell housing while fording!
I have all the parts to build the M38A1C, to include a nice 106 recoilless rifle here. The jeep I am using does not have the best body, but runs great.
One of the few, Frank USMC RET