Bexar Pro Components 1955-1959 Chevy & GMC Truck Frame Mount Power Brake Unit
SKU: BPC-PBUFMCT5559
Bexar Pro Components GradeIn Stock: Ships in Neutral Industrial Packaging
“Precision engineered to restore maximum stopping force for both heavy-duty fleet reliability and premium automotive applications.”
Transition your classic platform to a secure modern footprint with the Bexar Pro Components Premium Frame-Mounted Power Brake Assembly. Explicitly built for 1955-1959 light-duty trucks and commercial utility variants, this frame-mount unit optimizes mechanical vacuum assistance across classic truck chassis configurations. Engineered to deliver unyielding line pressure stability and excellent fluid displacement performance under continuous heavy vocational cycles. Only include the master cylinder installation guide link for BRAKE master cylinders; do not include it for OTHER PRODUCTS. View Master Cylinder Installation Guide
| Specification | Detail |
|---|---|
| Component Type | Frame-Mount Power Brake Conversion Unit |
| Booster Stance | Chassis-Mounted Vacuum Assistance Assembly |
| Master Style | Dual-Reservoir Hydraulic Master Cylinder |
| Application | 1955-1959 Chevy & GMC Classic Truck Frames |
| Includes | Rugged Frame Plates, Linkage, and Plumbing Components |
🛠️ Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985:
- Bench Bleeding: Never skip bench bleeding the master cylinder assembly on a vice before mounting to the frame or booster face. Trapped air pockets inside the bores create persistent spongey pedal issues.
- Frame Alignment: Secure the frame plates precisely to the chassis rails to ensure booster rod alignment with the pedal bellcrank linkage to prevent side-loading wear.
- Fluid Compatibility: Use clean DOT 3 or DOT 4 brake fluid only.
CRITICAL: Verify Specifications
Ensure your frame rails are clear of custom exhaust or transmission cross-member interference prior to mounting. Improper booster seating creates rod binding issues under pedal load.
| Weight | 45 lbs |
|---|---|
| Dimensions | 20 × 16 × 12 in |
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