High-geared [6-speed] Transmission mod for T680 & W900

Hi.
This is a High-geared 6-speed Transmission mod. It accelerate very smoothly.
The most suitable transmission for H-shifter or sequential.
–==specs==–
Forward:6 gears
Reverse:3 gears
Retarder:6 steps
This mod raise your tracking experience.
Enjoy ;)!!

Credits: Kam_41

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