Stiffen up your classic Mustang’s chassis with QA1’s tubular subframe connector kit. Designed for 1964–1970 Mustangs, this bolt-on upgrade ties the front and rear subframes together, reducing chassis flex and improving overall handling performance. Perfect for street cars, restomods, and track builds, QA1 subframe connectors make your Mustang feel more solid and responsive. STRENGTHEN YOUR MUSTANG’S FOUNDATION Classic Mustangs are known for body flex, especially when cornering or under hard acceleration. QA1’s tubular subframe connectors solve this by creating a rigid connection between the front and rear frames. The result: more predictable handling, reduced squeaks and rattles, and improved traction for modern driving demands. EASY INSTALLATION These connectors are engineered for a true bolt-on installation with no need to cut into the floorpan. They are built to work with the QA1 4 link suspension and fit tightly to the frame rails for maximum rigidity.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1964-1970 |
Ford |
Mustang |
Base |
| 1969-1970 |
Ford |
Mustang |
Boss 302 |
| 1969-1970 |
Ford |
Mustang |
Boss 429 |
| 1970 |
Ford |
Mustang |
Grande |
| 1970 |
Ford |
Mustang |
Mach 1 |
| 1965-1970 |
Ford |
Mustang |
Shelby GT-350 |
| 1966 |
Ford |
Mustang |
Shelby GT-350H |
| 1967-1970 |
Ford |
Mustang |
Shelby GT-500 |
| 1968 |
Ford |
Mustang |
Shelby GT-500KR |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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