Heavy duty truck 5 speed id

[Lynn]

Posted in the lounge instead of technical, as it is so far off topic from muscle car stuff. Anyway, thought someone here could help. After all, you guys know everything, right?

Bought a Chevy engine and trans from BIG chevy grain truck to transplant into my 49 Studebaker farm truck. I think it is a 72 C60. Not sure which 5 speed I got.

Apparently, there were a lot of 5 speeds available back then.

M58 : NEW PROCESS 540GL. 5 SPEED TRANS.
M59 : 5 SPEED CLOSE RATIO TRANS. - NP.
M75 : 5 SPEED NEW PROCESS TRANS
M76 : 5 SPEED CLOSE RATIO TRANS. CLARK
M77 : 5 SPEED TRANS - CLARK
M78 : 5 SPEED TRANS - SPICER
M79 : 5 SPEED CLOSE RATIO TRANS. - SPICER
M85 : SPICER 5752C, 5 SPEED TRANS.
MT8 : SPICER 3152A, 5 SPEED TRANS
MT9 : SPICER 3152F 5 SPEED TRANS

I deleted the 4 speed and 10 speed trans options. I do know this one is a five speed, and it is big. Massive 1.5 inch input shaft.

Truck is being parted out, and is still parked. I am going over there in the morning to get some clutch linkage parts. I know a lot of the 70's chevy trucks have an option sheet taped in the glove box. I am hoping it is still there. I will also get the vin and any data plate info I can. Just need to know what trans I have so I can get some gaskets and seals. Can post some pics tomorrow.