569671 - Brake Master Cylinder – 88in – Pre-1980Brake Master Cylinder is the hydraulic control unit of the braking system, generating the fluid pressure that actuates the wheel cylinders at each corner of the vehicle. This unit is a tandem (dual circuit) master cylinder designed for the servo assisted brake system on the 88 inch Short Wheelbase Series 3, produced up to June 1980. Dual circuit construction maintains braking capability if one circuit is compromised. The reservoir is secured by two