18-20 Speed Transmission v1.0

This mod features an 18 and an 20 speed transmission that's made for heavy loads, efficient hauling and cruising.

The differential_ratio is: 2.83

Trucks supported:

Kenwoth W900 (SCS)

Peterbilt 389 (SCS)

Volvo VNL (SCS)

Peterbilt 579 (SCS)

Mack Anthem (SCS)

Freightliner Cascadia (SCS)