TECH SUPPORT & BULLETINS
GB offers free US-based bilingual (English/Spanish) technical support for our products. Our technical support staff are available Monday through Friday from 7:00 am to 4:30 pm PST. Technical support can be reached by contacting us here, or by calling (562) 272-7333.
GB also offers several other free technical and educational resources including Technical Bulletins, YouTube videos and our TechBlog. We also invite you to visit our Facebook and LinkedIn pages to stay current with new product releases and updates to our technical resources.
Our technical bulletins cover important procedures, technical tips, cautions and warnings that must be followed during the installation and use of our products. We include our technical bulletins with the product when applicable. In all cases, you should refer to the vehicle manufacturer's procedures during the installation of the product. If you have questions regarding the installation or use of our product please contact us.
Click on the PDF icon to view or download our technical bulletins.
TB 103 - FORD POWER STROKE 7.3L IDM MODULE REPLACEMENT
Applies to GB PNs: 921-110, 921-120
This TB covers critical tests that must be performed on the vehicle prior to the installation of the new Injector Driver Module (IDM). Failure to perform this procedure may result in immediate damage to the IDM.
TB 104 - FORD POWER STROKE 6.0L FICM REPLACEMENT
Applies to GB PNs: 921-122, 921-123, 921-124
This TB covers critical tests that must be performed on the vehicle prior to the installation of the new Fuel Injection Control Module (FICM). Failure to perform this procedure may result in immediate damage to the FICM.
TB 105 - GM DURAMAX LLY, LBZ, LMM FUEL INJECTOR IDENTIFICATION
Applies to GB PNs: 732-501, 732-503, 732-504
This TB helps the technician or counterman identify the injector part number used by each Duramax engine code by inspecting the keying of the electrical connector, which is unique to each engine code.
TB 114 - INSTALLATION PROCEDURES FUEL PRESSURE REGULATOR UPGRADE KIT
Applies to GB PN: 522-038
This TB covers installation procedures for GB's fuel pressure regulator kit for the Ford 6.0L Power Stroke. Often referred to as the blue spring kit, this upgrade kit increases the factory fuel pressure to improve injector operation and life.
TB 124 - DODGE/RAM 5.9L/6.7L CUMMINS SEVERE DUTY FILTER KIT (SDFK) INSTALLATION
Applies to GB PNs: 522-049, 522-050
This TB includes the installation instructions for the SDFK on Cummins equipped Dodge/RAM vehicles. The kit provides improved fuel filtration over the originally installed system. This reduces the potential for contamination and damage to fuel system components.
TB 127 - INSTALLATION OF FORD 6.7L POWER STROKE INJECTORS
Applies to GB PNs: 722-509, 722-510, 722-511, 722-512
This TB includes important calibration instructions that must be followed during injector installation on the Ford Power Stroke 6.7L. It also covers the need to replace the injector fuel supply line and hold-down bolt during replacement.
TB 128 - INSTALLATION OF NAVISTAR INJECTORS ON DT466, 570, MAXXFORCE ENGINES
Applies to GB PNs: 718-510, 718-511, 718-512, 718-513, 718-514, 718-515, 718-516, 718-517,
718-518, 718-519, 718-520, 718-521 - ALSO SEE TB 135
This TB includes important instructions that must be followed during injector installation on Navistar DT466, DT570, HT570, MaxxForce DT, MaxxForce 9, MaxxForce 10, N9 and N10 Engines.
TB 135 - INSTALLATION OF HIGH PRESSURE OIL RAIL SEAL KIT ON NAVISTAR ENGINES
Applies to GB PNs: 522-069 & 718-510, 718-511, 718-512, 718-513, 718-514, 718-515, 718-516, 718-517, 718-518, 718-519, 718-520, 718-521 - ALSO SEE TB 128
This TB includes important instructions that must be followed during injector installation of the high-pressure oil rail seal kit on Navistar DT466, DT570, HT570, MaxxForce DT, MaxxForce 9, MaxxForce 10, N9 and N10 Engines.