Weld-In Subframe Connectors

Big power and competitive corners can bend your unibody vehicle like a pretzel! Build a better foundation for power with a set of weld-in subframe connectors from Summit...

Big power and competitive corners can bend your unibody vehicle like a pretzel! Build a better foundation for power with a set of weld-in subframe connectors from Summit Racing Equipment.

Back in the 1960s and 1970s, cars like Mustangs, Novas, Camaros, Firebirds, and Challengers featured unibody construction, which was great for everyday driving. However, as hot rodders and racers started adding power, they found that the subframes would flex under serious load, resulting in poor handling, crooked launches, and even metal fatigue. Weld-in subframe connectors were developed to tie the subframes together, resulting in less...

Big power and competitive corners can bend your unibody vehicle like a pretzel! Build a better foundation for power with a set of weld-in subframe connectors from Summit Racing Equipment.

For more detailed information about chassis stiffness, click here.

Bolt-on subframe connectors are great for weekend warriors who may want to remove the connectors later, but for dedicated race vehicles with serious horsepower, weld-in subframe connectors are the way to go. They keep your tires firmly planted and your chassis straight, so all that power you’re making goes right to the pavement.

Top Brands

Summit Racing Equipment makes shopping for weld-on subframe connectors easier by only partnering with trusted manufacturers that specialize in chassis and suspension aftermarket parts. Choose from brands like Hotchkis, UMI Performance, Heidts, Competition Engineering, BMR Suspension, and more.

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Results 1 - 25 of 78

Tin Man Fabrication Subframe Connectors for 1967-1970 COUGAR, 1965-1973 MUSTANG - 109401

Tin Man Fabrication Subframe Connectors for 1967-1970 COUGAR, 1965-1973 MUSTANG - 109401

Subframe Connectors, Gen I, Steel, Weld-On, Ford, Mercury, Pair

Part Number: TMF-109401

4.94 out of 5 stars ( 31 )

Estimated Ship Date: Tomorrow

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UMI Performance Boxed Weld-In Subframe Connectors for 1982-1992 CAMARO, FIREBIRD - 2400-B

Subframe Connectors, Weld-On, Steel, Black, Chevy, Pontiac, Pair

Part Number: UPI-2400-B

4.84 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Stifflers Suspension Weld-On Subframe Connectors for 1979-2004 MUSTANG - SFC-M01

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Ford, Pair

Part Number: IVP-SFC-M01

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors for 1974-1981 CAMARO, FIREBIRD - 4013

Subframe Connectors, Weld-On rear, Bolt-On front, No Mods, Black Powdercoated, Steel, 74-81 Chevy, Pontiac, Pair

Part Number: HSS-4013

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Global West Suspension Subframe Connectors for 1974-1981 CAMARO, FIREBIRD - 902

Subframe Connectors, Weld-On, Steel, Black, Chevy, Pontiac, Pair

Part Number: GLS-902

4.5 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Detroit Speed Weld-On Subframe Connectors for 1967-1969 CAMARO, FIREBIRD - 010101DS

Subframe Connectors, Weld-on, Steel, Natural, Chevy, Pontiac, Kit

Part Number: DSR-010101DS

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Hotchkis Weld-On Subframe Connectors for Convertible 1967–1969 Camaro, Firebird, 1969–1973 Nova 1973 Apollo, Omega, Ventura, 1968 Chevy II 4008

Subframe Connectors, Weld-On, Steel, Black, Chevy, Pontiac, Convertible, Pair

Part Number: HSS-4008

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Hotchkis Sport Suspension Weld-On Subframe Connectors 4010

Subframe Connectors, Weld-On, Steel, Black, Mopar, B-Body, Pair

Part Number: HSS-4010

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Hotchkis Sport Suspension Weld-On Subframe Connectors for 1964-1970 MUSTANG - 4017

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Ford, Pair

Part Number: HSS-4017

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors 4007

Subframe Connectors, Weld-On rear, Bolt-On front, No Mods, Black Powdercoated, Steel, Chevy, Pontiac, Pair

Part Number: HSS-4007

5.0 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Detroit Speed Weld-On Subframe Connectors for 1970-1981 CAMARO, FIREBIRD - 010103DS

Subframe Connectors, Weld-on, Steel, Natural, Chevy, Pontiac, Kit

Part Number: DSR-010103DS

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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UMI Performance Boxed Weld-In Subframe Connectors for 1982-1992 CAMARO, FIREBIRD - 2400-R

Subframe Connectors, Weld-On, Steel, Red, Chevy, Pontiac, Pair

Part Number: UPI-2400-R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Global West Suspension Subframe Connectors for 1964-1966 MUSTANG - 910

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Ford, Pair

Part Number: GLS-910

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Global West Suspension Subframe Connectors for 1967-1973 MUSTANG - 911

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Ford, Pair

Part Number: GLS-911

4.76 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors 4009

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: HSS-4009

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors for 1970-1973 CAMARO, FIREBIRD - 4012

Subframe Connectors, Weld-On rear, Bolt-On front, No Mods, Black Powdercoated, Steel, 70-73 Chevy, Pontiac, Pair

Part Number: HSS-4012

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Global West Suspension Subframe Connectors for 1961-1970 FALCON, 1963-1965 RANCHERO - 916

Subframe Connectors, Weld-On, Steel, Black, Ford, Pair

Part Number: GLS-916

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Global West Suspension Subframe Connectors for 1967-1969 CAMARO, FIREBIRD - 900

Subframe Connectors, Weld-On, Steel, Black Powdercoated, Chevy, Pontiac, Pair

Part Number: GLS-900

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors 4014

Suspension Subframe Connector; Subframe Connector; 1.5x2.5 in. Steel Rectangular; Black

Part Number: HSS-4014

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Detroit Speed Weld-On Subframe Connectors for 1964-1970 MUSTANG - 010105DS

Subframe Connectors, Weld-on, Steel, Natural, Ford, Kit

Part Number: DSR-010105DS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hotchkis Sport Suspension Weld-On Subframe Connectors 4015

Suspension Subframe Connector; Subframe Connector; 1.5x2.5 in. Steel Rectangular; Black

Part Number: HSS-4015

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Steeda Weld-On Subframe Connectors for 1979-2004 MUSTANG - 555-5245

Subframe Connectors, Weld-On, Steel, Natural, Ford, Pair

Part Number: SDA-555-5245

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Nov 13, 2026 if ordered today

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Estimated Ship Date: Nov 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Stifflers Suspension Weld-On Subframe Connectors for 1979-2004 MUSTANG - SFC-M01

5 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Competition Engineering Weld-On Subframe Connectors for 1970-1981 CAMARO, FIREBIRD - C3013

Subframe Connectors, Weld-On, Steel, Natural, Chevy, Pontiac, Pair

Part Number: CEE-3013

2.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Competition Engineering Weld-On Subframe Connectors for 1964-1973 MUSTANG - C3040

Subframe Connectors, Weld-On, Steel, Natural, Ford, Pair

Part Number: CEE-3040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Global West Suspension Subframe Connectors for 1968 CHEVY II, 1969-1974 NOVA - 903

Subframe Connectors, Weld-On, Steel, Black, Chevy, Pair

Part Number: GLS-903

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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