I have a 1950 3100 with a 4 speed with the enclosed driveshaft. I want to drain and refill the tranny fluid before I put the cab back on the frame (figure it will be easier that way). I have drained the gearbox, but thought I read somewhere that the enclosed driveshaft needs filled also? If so, how do I drain it and where do I fill it? Any help would be appreciated.
