Best Volvo gearbox / transmission
My favorite is the Volvo FH Classic.
For an achivement you have to drive all brands in game. So i had enough time to look arround the other trucks. I noticed that the other trucks use 12th gear at 80 km/h.
The Volvos shift at 85 km/h in 12th gear. Normally it stays in 11th gear and consumes a lot of fuel. So i decided to change that.
I have shortend the 11th gear a lot, and the gears arround a bit to avoid unconfortable jumps when the truck shifting.
Now you can put in the cruise control at 80 km/h and it stays in 12th gear.
As a Bonus i added 2 reverse gears. Thats a total of 3 and the Volvos now reach 35 km/h in reverse movement.