Our uniquely designed Detroit Speed weld-in subframe connectors increase your car's stiffness by connecting the front subframe to the rear frame rails.
Our subframe connectors are fabricated from 1.5 inch x 2.5 inch x 0.083 inch wall rectangular steel tubing. Laser cut brackets are included that attach the rear of the subframe to the connector for an easy, strong, and simple welded joint.
Unlike others, the Detroit Speed subframe connectors are barely visible from underneath the car. The rear of the connector attaches to the Detroit Speed torque boxes that come with the Mustang Quadralink kit or the Mustang Mini-Tub Kit. The connectors are bent and TIG welded in a fixture for accuracy and repeatability.
Our subframe connectors do not interfere with seat attachment hardware or the installation and removal of the rear leaf spring pocket. The subframe connectors can be installed on convertibles. Additionally, the molded factory carpet will still fit over the subframe connectors. Our weld-in connectors are supplied with templates and detailed instructions for installation.
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Detroit Speed puts a significant amount of effort into developing long-lasting, dependable products that are formulated to exceed late-model performance expectations. Our systems are designed by exceptionally qualified engineers and built by fabricators dedicated to making the best systems they possibly can. Our parts are made using state-of-the-art manufacturing technologies–CNC machining, forging, hydroforming, and more–to bring your classic muscle car to the 21st century.
Months of testing, revising, and polishing stand behind every product we make available to the public, and our test cars prove the point. Each of our development mules receive thousands of hard miles attending car shows, completing road trips, crushing autocross paddocks, and storming track days in the process. The pursuit of perfection has always been our primary goal, and it always will be. Because of this, we can confidently say our systems are the best, most comprehensive solutions to any and all your muscle car problems.
| Make | Model | Submodel | Years |
| Ford | Mustang | Boss 302 | 1969 - 1970 |
| Ford | Mustang | Boss 429 | 1969 - 1970 |
| Ford | Mustang | Grande | 1970 |
| Ford | Mustang | Mach 1 | 1970 |
| Ford | Mustang | Shelby GT-350H | 1966 |
| Ford | Mustang | Shelby GT-350 | 1965 - 1970 |
| Ford | Mustang | Shelby GT-500KR | 1968 |
| Ford | Mustang | Shelby GT-500 | 1967 - 1970 |
| Ford | Mustang | 1964 - 1970 |
| Chassis Codes | Ford Mustang 1964.5-1970 |
| Color | Silver |
| Finish | Bare |
| Location | Front/Rear |
| Manufacturer Warranty | 2-Year Limited Defects and Workmanship |
| Material | Steel |
| Vehicle Type | Car |
