Larger 1.34" bore master cylinder to compensate for rear disc brake conversions and front caliper upgrades on CK1500 trucks, where increased brake piston sizes result in a low/soft pedal feel.
Includes Master Cylinder and Adapter Fitting to connect to factory lines of CK trucks. Bench bleed kit also included.
Note: Stock hardlines will need slight adjustment to align with new ports. Master cylinder only fits traditional vacuum boosters, NOT hydroboost.