CK1500 Master Cylinder Upgrade (1.34in Bore) | 1988-2000 Chevy/GMC moto metal are based on the nearly

are based on the nearly impossible to find originals and are officially licensed by Chevrolet

and caliper all bolt right up with zero modification

This spring works great as a standalone subtle correction

extended cab trucks

Spec 17x9 -6 18x9 +0 Bolt Pattern 5x127 5x127 Centerbore (mm) 83 83

CK1500 Master Cylinder Upgrade (1.34in Bore) | 1988-2000 Chevy/GMC moto metal are based on the nearlyBigger calipers need more fluid, plain and simple. This larger 1. 34" bore master cylinder is the fix for the low, soft brake pedal that shows up after installing rear disc conversions or upgraded front calipers on 1988 2000 Chevy GMC CK1500 trucks (C1500 5 lug and K1500 6 lug). As you upsize brake piston area with a rear disc conversion or a bigger front caliper, the stock master cylinder simply can't move enough fluid volume to keep pedal travel