Bexar Pro BP7307 hydroboost brake booster for 1982-1991 Chevy GMC 3500 and Suburban.

Close-up of 10 x 1.25mm mounting studs and hydraulic ports on BP7307 booster.

Professional technician performing a hydraulic pressure test on a classic GM 1-ton hydroboost.

1982-1991 Chevy & GMC 3500 & Suburban Hydroboost Brake Booster | BP7307

Name: 1982-1991 Chevy &amp; GMC 3500 &amp; Suburban Hydroboost Brake Booster | BP7307
Brand: Bexar Pro Componets
SKU: 59059
Price: 349.49 USD
Availability: InStock

$349.49

Fitment Lookup:

Category: Hydroboost Brake Boosters BPC Brand: Bexar Pro Componets

Description
Additional information

Bexar Pro Hydroboost | 1982-1991 Chevy & GMC 3500 & Suburban

SKU: BP7307

Bexar Pro Components Grade
In Stock & Ready to Ship Out

“Engineered for the high-pressure stopping demands of heavy-duty square body and early GMT400 1-ton fleets.”

Bring professional-grade braking performance back to your classic heavy-duty chassis with the **Bexar Pro Hydroboost**. Built specifically for the **1982-1991 Chevrolet & GMC C30, K30, R3500, and V3500 1-Ton series**, as well as early **diesel Suburban** models, this unit is essential for heavy hauling and towing. Each unit is reverse-engineered to identify and correct original design weaknesses, utilizing 100% O.E. quality seals to ensure your vehicle maintains maximum clamping force under vocational loads.

Specification	Detail
Booster Type	Hydraulic (Power Steering Powered)
Housing Diameter	2.16 Inches
Housing Material	Heavy-Duty Cast Iron
Stud Thread Size	10 x 1.25mm
Internal Components	100% New Seals, Diaphragms & Check Valves

?️ Professional Installation & Field Note

Based on our shop experience specializing in heavy-duty brakes since 1985:

Common Symptom: If you feel a “kickback” in the pedal or hear a hiss from under the dash on your 1-ton GMC/Chevy, the internal spool valve or seals have likely failed.
System Hygiene: These units are powered by your power steering pump. We strongly recommend a full fluid flush. Old, contaminated fluid will score the new internal seals of this hydroboost instantly.
Mounting: This unit is built to match the factory firewall geometry of the 1982-1991 chassis. Ensure your mounting surface is clean to prevent binding.

Installation & Troubleshooting Guide →