Product Description:
Install your UMI 6428 Fuel Tank Relocation Kit with ease—even if you don’t have the UMI 4-link!
The UMI Performance 6429 Bracket Add-On makes our industry-leading rear fuel tank conversion accessible for all 1973-1987 C10 and GMC squarebody trucks, regardless of rear suspension setup. If your truck still runs factory leaf springs these precisely engineered brackets, templates, and hardware allow you to securely mount the 6428 kit using factory frame rails—no 4-link required.
Fitment Note: Compatible exclusively with the UMI 6428 kit.
PRODUCT FEATURES
- Laser-cut steel mounting brackets
- Includes frame templates for accurate install
- Includes all new HD installation hardware
Q: What is PN 6429, and when do I need it?
A: The 6429 kit contains the custom frame brackets, templates, and hardware needed to mount UMI’s 6428 Fuel Tank Relocation Kit on any 1973-87 Chevy/GMC C10 truck without UMI’s 4-link suspension. If your truck runs leaf springs or another stock-style rear suspension, you’ll need the 6429 add-on to complete your tank relocation safely and securely.
Q: Can I use the 6429 brackets with my factory frame?
A: Yes. The kit is specifically designed to bolt UMI’s rear tank crossmembers and hardware directly to factory C10 frame rails, using templates for accurate drilling and alignment—no welding required.
Q: What suspension setups does 6429 work with?
A: 6429 is compatible with trucks running original leaf springs, aftermarket leaf spring setups, or most non-UMI rear suspensions. If your truck has a UMI 4-link, you do not need these brackets—the crossmembers bolt directly to the 4-link hardware.
Q: Is installation difficult for the average builder?
A: No. Installation is straightforward and mainly involves removing the bed and factory crossmembers, marking and drilling holes using provided templates, and bolting in the brackets and tank hardware with included fasteners. Only basic hand tools are required—no specialized skills.
Q: Can I still use a tail light or in-bed filler neck?
A: Yes. The mounting system and provided crossmembers maintain full compatibility with both tail light and in-bed filler solutions offered by various manufacturers.
Q: Will the tank install require frame trimming or modifications?
A: In most cases, only simple drilling and some light trimming of bed, frame flanges, or fuel tank flanges may be required for exact fitment—as explained in installation steps. No welding, torch cutting, or heavy fabrication is necessary.
THIS PRODUCT FEATURES
- Designed & Manufactured in the USA
- Durable Powder-Coat
- North American Raw Materials
- Precision Laser Cut Components
Fitment
1973-1987 GM C10/C15
Platform
1973-1987 GM C10/C15
Manufacturer
UMI Performance
Direct Bolt-On
No
Material
Mild Steel
Modifications
Cutting,Drilling
Finish
Powder Coat
UOM
Pair
Hardware
Included
Color
Black
