1955–57 Chevy Chrome 8" Dual Power Brake Booster Kit | Tri-Five

8" Dual Diaphragm Chrome Power Brake Booster Kit with Straight Brackets: 1955–1957 Chevy Tri-Five

Give your Tri-Five Chevy modern stopping power and show-quality looks in one bolt-on kit. This complete kit pairs the PB8531C chrome 8" dual diaphragm booster with chrome straight mounting brackets made for 1955, 1956, and 1957 Chevy cars. The bright chrome finish makes the booster an engine bay centerpiece, and the dual diaphragm design delivers a firm, confident pedal from a compact package.

The 8" size leaves room for tall valve covers, big-block swaps, and aftermarket heads that often crowd a full-size booster. The straight brackets mount the booster in line with the pedal for a clean installation on the Tri-Five firewall, and the included rod extension and clevis connect it to your brake pedal. It uses standard GM bolt patterns, including the 3-3/8" square pattern, so it works with common GM master cylinders. Every booster is vacuum tested and passes a quality inspection before it ships.

What’s Included

• PB8531C 8" dual diaphragm power brake booster, chrome
• Chrome straight mounting brackets for 1955–1957 Chevy
• Pedal rod extension
• Clevis with pin

Features

• Show-quality chrome finish on the booster and brackets
• Dual diaphragm design for strong braking assist
• Compact 8" size clears tall valve covers and big-block swaps
• Straight brackets designed for the Tri-Five firewall
• Complete kit with brackets and pedal hardware
• Standard GM bolt patterns, including the 3-3/8" square pattern
• Vacuum tested and quality inspected before shipping

Fits 1955–1957 Chevy Tri-Five Cars

• Bel Air, including convertible, hardtop, and sedan
• 210 and Del Ray
• 150
• Nomad, Handyman, Townsman, and Beauville wagons
• Sedan Delivery

Master cylinder, proportioning valve, and brake lines are sold separately. Prefer a factory look? See this kit in gold zinc or black powder coat.