BRANICK GM Bypass Adapter, Essential Brake Service Tool

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width: 100%; padding: 0.25rem 1rem 0.75rem; font-weight: 600; border-bottom: none; } } @media (max-width: 767px) { .product-content-wrapper { padding: 0 10px 3rem 10px !important; } .product-content-wrapper h2 { font-size: 1.2rem; } .product-content-wrapper h3 { font-size: 1.1rem; } .product-content-wrapper .product-hero-image { float: none !important; display: block !important; margin: 0 auto 1.5rem auto !important; max-width: 100% !important; } .product-content-wrapper img[style*="float: right"] { float: none !important; display: block !important; margin: 0 auto 1.5rem auto !important; max-width: 100% !important; } } @media (max-width: 500px) { .product-content-wrapper { padding: 0 10px 2rem 10px !important; } } @media (min-width: 768px) { .product-content-wrapper .product-hero-image { float: right !important; max-width: 40%; margin: 0 0 1rem 20px; } } Professional GM Brake Bleeding - Branick 39GC Bypass Adapter (60 PSI Rating) The Branick 39GC GM Bypass Adapter (Part# 01-0071) is a professional brake service tool designed for General Motors vehicles with dual-reservoir master cylinders. This adapter integrates with Branick G300 and G300A Pressure Brake Bleeder systems to enable efficient one-person brake bleeding with a 60 PSI maximum pressure rating. The chain-and-grommet retention system with quick-coupler connection allows individual port sealing for circuit-isolated bleeding or simultaneous dual-reservoir operation when paired with a second adapter. Key Features and Benefits GM-Specific Dual-Reservoir Design - Seals individual master cylinder ports for circuit-isolated bleeding or simultaneous dual-reservoir operation when paired with a second 39GC and the #20 Dual Bleeding Attachment. This port-level sealing reduces brake service time by up to 50% compared to traditional two-person pumping methods. Professional 60 PSI Pressure Rating - Chain-and-hook retention system maintains seal integrity at maximum regulated pressure, three to four times higher than consumer-grade adapters. Eliminates pop-off failures during sustained pressure bleeding operations required for ABS-equipped vehicles. One-Person Operational Efficiency - Quick-coupler connection allows rapid adapter swapping between vehicles without tools, cutting average brake bleed time from 20-30 minutes to 10-15 minutes per vehicle. OEM-recommended for anti-lock brake system applications. Applications Professional automotive service shops performing brake maintenance on GM vehicles. Fleet maintenance facilities servicing Chevrolet, GMC, Buick, and Cadillac vehicles. Independent brake specialty shops handling dual-reservoir brake systems. Home garage brake maintenance and classic GM vehicle restoration projects. Technical Specifications Branick 39GC Specifications Specification Details Model Number 39GC Part Number 01-0071 Maximum Pressure 60 PSI System Compatibility Branick G300/G300A Pressure Brake Bleeder Vehicle Application GM dual-reservoir master cylinders Fluid Compatibility DOT 3, DOT 4, DOT 5.1 Weight Approximately 2 lbs Manufacturing Made in USA (Fargo, ND) Warranty 1-year commercial warranty Installation Requirements Requires Branick G300 or G300A Pressure Brake Bleeder (sold separately) and compressed air supply at 100-175 PSI. Installation involves removing the master cylinder reservoir cover, inserting the grommet seal, securing the chain assembly, and connecting the quick coupler. No permanent vehicle modifications required. Streamline Your GM Brake Service Order the Branick 39GC today and experience professional-grade brake bleeding efficiency backed by a 1-year commercial warranty. Frequently Asked Questions Does the Branick 39GC adapter work with both G300 and G300A brake bleeder systems? Yes, the 39GC is fully compatible with both the Branick G300 and G300A Pressure Brake Bleeder systems. The quick-coupler connection integrates seamlessly with both models, providing the same 60 PSI pressure capability and one-person operational efficiency across both platforms. Q: Does the Branick 39GC adapter work with both G300 and G300A brake bleeder systems? A: Yes, the 39GC is fully compatible with both the Branick G300 and G300A Pressure Brake Bleeder systems. The quick-coupler connection integrates seamlessly with both models, providing the same 60 PSI pressure capability and one-person operational efficiency across both platforms. Can I bleed both master cylinder reservoirs simultaneously with the 39GC? Yes, but you need two 39GC adapters and the separately-sold #20 Dual Bleeding Attachment (part# 901-051). One 39GC adapter seals one reservoir port at a time for circuit-isolated bleeding. Pairing two adapters with the #20 attachment enables simultaneous bleeding of both reservoirs, reducing service time by approximately 50%. Q: Can I bleed both master cylinder reservoirs simultaneously with the 39GC? A: Yes, but you need two 39GC adapters and the separately-sold #20 Dual Bleeding Attachment (part# 901-051). One 39GC adapter seals one reservoir port at a time for circuit-isolated bleeding. Pairing two adapters with the #20 attachment enables simultaneous bleeding of both reservoirs, reducing service time by approximately 50%. Is the Branick 39GC adapter recommended for ABS-equipped GM vehicles? Yes, the 39GC carries OEM-recommended designation specifically for anti-lock brake system applications. The pressure bleeding method using the G300 system keeps compressed air and brake fluid separated, preventing air introduction that can contaminate ABS hydraulic control modules, which are difficult and expensive to purge once air-contaminated. Q: Is the Branick 39GC adapter recommended for ABS-equipped GM vehicles? A: Yes, the 39GC carries OEM-recommended designation specifically for anti-lock brake system applications. The pressure bleeding method using the G300 system keeps compressed air and brake fluid separated, preventing air introduction that can contaminate ABS hydraulic control modules, which are difficult and expensive to purge once air-contaminated. What comes included with the Branick 39GC adapter? The 39GC includes the complete adapter assembly: chain and eyebolt mounting hardware, grommet seal, quick coupler nipple with 1/4-28 thread, J hook securing mechanism, and wing nut hardware. The Branick G300/G300A Pressure Brake Bleeder, compressed air supply, and #20 Dual Bleeding Attachment are sold separately and required for operation. Q: What comes included with the Branick 39GC adapter? A: The 39GC includes the complete adapter assembly: chain and eyebolt mounting hardware, grommet seal, quick coupler nipple with 1/4-28 thread, J hook securing mechanism, and wing nut hardware. The Branick G300/G300A Pressure Brake Bleeder, compressed air supply, and #20 Dual Bleeding Attachment are sold separately and required for operation. Show more