The booster and master cylinder decide how your brake pedal feels. With The Right Stuff 55-59 GM & GMC C/K Truck, Master Cylinder, 8" Booster Combination Kit Disc/Disc, the worn original is replaced with a new part built for the job. Why It's Worth It: Restores proper power assist. Correct mounting for the listed application. Listed for 1955-1959 applications as named in the title. Sold by RPUI, a wholesale restoration parts distributor. Before You Order: Check firewall and valve cover clearance. Confirm disc/disc or disc/drum setup before ordering. Bleed the master cylinder before installation. Compare with your original part before installing.
Specifications:
| Booster Diaphragm Type: |
Dual |
| Booster Housing Diameter: |
8 IN |
| Booster Type: |
Vacuum |
| Bracket Included: |
Yes |
| California Proposition 65: |
Yes |
| Grade Type: |
Regular |
| Master Cylinder Bore Size: |
1 IN |
| Master Cylinder Cap Included: |
Yes |
| Master Cylinder Material: |
Cast Iron |
| Master Cylinder Port Quantity: |
2 |
| Mounting Hardware Included: |
Yes |
| Part Type: |
Power Brake Booster with Brake Master Cylinder |