Well for the shift levers they may have to be switched and the mount too. As for the speedo gears though IIRC you use the neon sensor and the gear. Now if you don't have the sensor then you will need to switch. But if you have both the sensor and the gear then you just do the wireing.. Don't quote me on this though. I know I will have to change the gears when I switch because I have to swap the quaife so....

I edited to the wiki!