MM 670 Super oil

Jersey Jim

New User
I recently acquired a late 1969 model diesel MM670 Super with 3 speed torque. What oil should I use in the differential, transmission, and pump to shift the 3 speed torque? I have a barrel of Hytran Plus for the tractors used on the farm.
 
I use Hy-Tran in the hydraulics and high quality gear lube in the rear end and transmission (Schaeffer). For heavy work I prefer the heavy oil..... if she is just for show then I am not sure it makes much difference....
 
Hytran or equivalent in a three speed. Gear oil will damage it. Too thick to be applying clutch packs. Likely will have too much pressure on the unengaged clutch pack, and burn it up.
 

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