The Right Stuff 1973-87 GM & GMC C/K Truck, Black Hydro Boost Upper Assembly Kit Disc/Disc - (BHB735672)

Hydro-boost is the clean answer for a 1973-87 GM or GMC C/K square-body that has lost its vacuum to a big cam, a diesel swap or a crowded firewall. This black upper assembly pairs a hydraulic booster with an aluminum dual-port master cylinder and is set up for disc/disc trucks, giving you firm, consistent pedal feel without depending on manifold vacuum.

Why It's Worth It

• Power-steering-driven assist that doesn't fade when vacuum is low
• 1" bore aluminum master cylinder with 2 ports for a proper dual-circuit system
• Black finish for a factory-looking engine bay
• Comes with the bracket and pedal rod extension, so it bolts up as a package

What's Included

• Hydro-boost unit and aluminum master cylinder with cap
• Mounting bracket, brake pedal rod extension and mounting hardware
• Bleeder hoses

Before You Order

• This is the disc/disc version. Trucks with rear drums need the matching disc/drum setup.
• Hydro-boost runs off the power steering pump. Plan the pressure and return hoses, and make sure your pump can handle the extra load.
• After a disc conversion, confirm your proportioning valve suits a four-wheel disc system.

Specifications:

Bleeder Hoses Included:	Yes
Booster Diaphragm Type:	Single
Bracket Included:	Yes
Brake Pedal Rod Extension Included:	Yes
California Proposition 65:	Yes
Grade Type:	Black
Master Cylinder Bore Size:	1
Master Cylinder Cap Included:	Yes
Master Cylinder Material:	Aluminium
Master Cylinder Port Quantity:	2
Mounting Hardware Included:	Yes
Part Type:	Hydro Boost Booster & Master Cylinder Combo

Warranty:

The Right Stuff products carry a limited lifetime warranty to be free of defects in material and workmanship. The warranty is void if the product has been altered, improperly installed or used for purposes other than originally intended.