1978 Chassis Components Chassis & Suspension - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770300

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770300

Crossmember, Transmission, Steel, Black, GM, TH200/TH350/M-21/M-22/Powerglide/Saginaw/Super T-10, Each

Part Number: SUM-770300

4.84 out of 5 stars ( 75 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770301

Crossmember, Transmission, Steel, Black, GM, 700R4/T-5/4L60, Each

Part Number: SUM-770301

4.74 out of 5 stars ( 47 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Stifflers Suspension Transmission Crossmembers for 1948-1952 F-1, 1953-1979 F-100, 1975-1979 F-150 - TCB-FT02

Transmission Crossmember, Steel, Black Hammertone Powdercoated, 6R80, 10R80, MT82, RWD only, Ford, Each

Part Number: IVP-TCB-FT02

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1968-1981 CORVETTE - SUM-770319

Crossmember, Transmission, Steel, Black, GM, 700R4/4L60, Chevy, Each

Part Number: SUM-770319

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770324

Crossmember, Transmission, Steel, Black, GM, G-Body, 4L80E, Each

Part Number: SUM-770324

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1975-1981 CAMARO, FIREBIRD, 1975-1979 NOVA - SUM-770317

Crossmember, Transmission, Steel, Black, GM, TH400/200-4R, Each

Part Number: SUM-770317

4.79 out of 5 stars ( 24 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770303

Crossmember, Transmission, Steel, Black, GM, TH400, Includes SUM-770307, Each

Part Number: SUM-770303

4.84 out of 5 stars ( 19 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

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

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

Part Number: GLS-902

4.46 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Front Reinforcement Braces 3053-B

Chassis Stiffeners, Front Reinforcement Braces, Front Lower Position, Steel, Black Powdercoated, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: UPI-3053-B

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Hooker LS Engine Swap Transmission Crossmembers 12644HKR-1

Transmission Crossmembers, LS Engine Swap Transmission Crossmembers, Steel, Black Powdercoated, Automatic, Buick, Chevrolet, GMC, Olds, Pontiac, Each

Part Number: HOK-12644HKR-1

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Alston Racing Bolt-On Subframe Connectors for 1970-1981 CAMARO, FIREBIRD - AL-102412

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

Part Number: ARH-AL-102412

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Transmission Crossmembers 3108-R

Transmission Crossmember

Part Number: UPI-3108-R

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Front Reinforcement Braces 3053-R

Chassis Stiffeners, Front Reinforcement Braces, Front Lower Position, Steel, Red Powdercoated, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: UPI-3053-R

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770372

Transmission Crossmember, Steel, Chevy, B-Body, 700R4, 4L60E, Each

Part Number: SUM-770372

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1975-1981 CAMARO, FIREBIRD, 1975-1979 NOVA - SUM-770318

Crossmember, Transmission, Steel, Black, GM, 700R4/4L60/4L60E, Each

Part Number: SUM-770318

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1968-1981 CORVETTE - SUM-770321

Crossmember, Transmission, Steel, Black, GM, TH350, Chevy, Each

Part Number: SUM-770321

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770373

Transmission Crossmember, Steel, Chevy, B-Body, TH400, 200R4, Each

Part Number: SUM-770373

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Trans-Dapt Performance Crossmembers for 1970-1981 CAMARO, FIREBIRD - 6419

Transmission Crossmember, Steel, Black, Chevy, Pontiac, Kit

Part Number: TRD-6419

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Goodmark Frame Rails GMK4062770781L

Frame Rail, Driver Side, Rear, Steel, EDP Coated, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: GMK-4062770781L

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Transmission Crossmembers 3108-B

Transmission Crossmember

Part Number: UPI-3108-B

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Hooker LS Engine Swap Transmission Crossmembers for 1970-1981 CAMARO, FIREBIRD - 12614HKR

Transmission Crossmember, LS Engine Swap, Steel, Black Powdercoated, Chevy, Pontiac, Kit

Part Number: HOK-12614HKR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770545

Transmission Crossmember, Steel, Black Powdercoated, Chevy, GMC, Each

Part Number: SUM-770545

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1968-1981 CORVETTE - SUM-770320

Crossmember, Transmission, Steel, Black, GM, TH400/ 200-4R, Chevy, Each

Part Number: SUM-770320

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Competition Engineering Formed Rear Frame Rails for 1970-1981 CAMARO, FIREBIRD - C3032

Frame Rails, Steel, Rear, Chevy, Pontiac, Pair

Part Number: CEE-3032

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Hooker Blackheart Transmission Crossmembers for 1970-1981 CAMARO, FIREBIRD - 12616HKR-1

Transmission Crossmember, Steel, Black Hammertone, Auto, Manual, Chevy, Each

Part Number: HOK-12616HKR-1

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air