Lock up and ice mode

Evildky

Try google, this is a universal type thing, not chassis specific. Basically it's a valve you place inline on the brake tube going to the rear, it's got a know you use to reduce the amount of pressure that get through. It's commonly needed on older cars that are retrofitted wiht better brakes to get the brake bias to a minable level. race cars often have separate masters for front and rear and adjust bias by moving the fulcrum that the pedal pushes back and forth between the two masters.