Here's another transmission mod for the Burnside. I created a new 4-speed manual transmission with overdrive, since the game's included 4-speed doesn't have overdrive. I also added a 5-speed manual, which adds even more gears!
You can also check out my 4 speed auto for the Burnside here.
Burnside 4-Speed & 5-Speed Manual Transmissions 1.0
More manual transmissions, for those who like to shift their own gears.