Trans lube $30.00 5 Gallons....

Meets Ford M2C134D specification “N”-series transmission/hydraulic application “Ford Tractor Transmission Fluid – High quality oil for use in older Ford tractors”. This is the original stuff, almost. It has an SAE viscosity number of 80W90. It is not “straight mineral oil”. The sniff test tells us that it has sulphur additives, so it is at least an API GL3 gear oil. Most likely, it is an API GL5 gear oil, because that’s the universal automobile standard for gear oil these days

The transmission fluid in an “N”:-series tractor lubricates the transmission, differential, rear wheel bearings, PTO and hydraulic pump drive, and it is also the fluid for the hydraulic lift and lubricates the steering sector and shaft system. In 9N/2N models.

The owner’s manual for the 9N and 2N models specified the use of only two fluids. They were STRAIGHT MINERAL OIL SAE 90 (above freezing) and STRAIGHT MINERAL OIL SAE 80 (below freezing). Caps in original. By the time 1950 rolled around, and the 8N was the only Ford tractor, oil technology had advanced a bit, and Ford specified the use of “Mild EP GEAR OIL conforming to Ford specs M4864A (SAE 80) (below freezing) or B (SAE 90) (above freezing)” , Today if asked, Ford-New Holland will specify the use of a combined hydraulic/transmission fluid which conforms to their specification M2C134D in all “N” series models.