Older commercial and utility vehicles had different priorities.

A work vehicle might be expected to:

Pull heavy trailers

Carry equipment

Climb steep grades

Move slowly over rough surfaces

Operate on construction sites

Travel on unpaved roads

Work in agricultural settings

For these applications, a transmission with very low gears could be much more useful than a simple road-oriented gearbox.

That’s why older machinery can sometimes have gear patterns that look completely unfamiliar to someone accustomed to modern cars.

The unusual markings reflect the vehicle’s intended job.

The “G” Can Tell You Something About the Vehicle

One fascinating thing about unusual transmission markings is that they can reveal the design philosophy of the vehicle itself.

If a manual shifter has a special low gear, that suggests the engineers expected the vehicle to operate in conditions where:

Torque matters more than speed.

Control matters more than acceleration.

Durability matters more than convenience.