CHEVROLET & GMC: Removal

Depress and release brake pedal several times to be sure that all pressure is discharged from accumulator prior to disconnecting hoses from booster. Raise Motor Home Chassis on hoist; all others, leave on ground. Clean all dirt from booster at hydraulic line connections and master cylinder. Remove nuts that secure master cylinder to booster and support bracket. Support master cylinder, and cover exposed end with clean cloth.
NOTE: In most cases, it is not necessary to disconnect master cylinder hydraulic lines to remove booster unit.
On all models except Motor Home Chassis, remove booster pedal push rod cotter pin and disconnect push rod from brake pedal ("C" and "K" models) or booster bracket pivot lever ("G" and "P" models). Remove booster support bracket ("C" and "K" models) or support braces ("G" and "P" models). Remove booster bracket-to-firewall or support bracket nuts and remove booster assembly.
On Motor Home Chassis, remove cotter pin, nut and bolt that secure operating lever to vertical brake rod. Remove the six nuts and bolts that secure booster linkage bracket to front and rear support brackets, and remove booster from vehicle by sliding booster off rear support studs. Remove cotter pin, nut, and bolt that secures operating lever to pedal rod. Remove brake pedal rod lever nut and bolt and then remove lever, sleeve and bushings.