| Brand | Gearhead |
|---|---|
| Port Quantity | 4 |
| Type | Master Cylinder |
| Items Included | Prop Valve with Side Mount Kit, Master Cylinder, Brake Booster |
Check the listing for details. 1955 1956 1957 8" Dual BLACK Brake Booster Bail Master Disc Drum Proportioning. Condition: New. Listed at 163.65 USD. This combination proportioning valve is for Disc/Drum applications. This valve performs all the necessary functions when using disc brakes in the front and drum brakes in the rear. This is the best deal you'll find on a quality setup like this.