Heavy Hauler Shifting an 18 Speed Transmission.

2025 Kenworth T880 Cummins 565 hp 1850 Tq 18 Speed Transmission.
Going through all 18 while grossing 109,000 lbs.

An Eaton 18 speed is basically a 4 speed with a granny gear. It also has low and high range and the ability to "Split" every gear, meaning there is a high and low range in every gear as well.