GM CK1500 Master Cylinder Upgrade



Larger 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.

**Not for use on trucks with OEM step-bore master cylinders such as Suburbans or 4-door SUVs.


Includes Master Cylinder and Adapter Fitting to connect to factory lines of CK trucks. Bench bleed kit also included.