wow love those adjustable rear arms. temptation to by now!! so i will have to space my front wheels out aswell ye? what will happen if i dont ditch the in bay regulators? i have run through them in my current hydraulic handbrake in car brake pipe set up. i have bias valve ready. what exactly do these regulators do? are they definately xr4x4? they are 253mm solid discs. thanks for all the advice!!!