1978 Chassis Components

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: Today

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

Part Number: SUM-770319

5.0 out of 5 stars ( 2 )

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Subframe Connectors, Bolt-on, Steel, Black Powdercoated, Chevrolet, Pontiac, Kit

Part Number: ART-11197300

5.0 out of 5 stars ( 1 )

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

Part Number: ARH-AL-102412

4.45 out of 5 stars ( 11 )

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Frame Brace, Chassis Stiffening Kit, Steel, 73-87 Chevy/GMC C-Series Truck, Short Bed, Kit

Part Number: SUM-770824

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

Part Number: SUM-770303

4.84 out of 5 stars ( 19 )

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

Part Number: SUM-770373

5.0 out of 5 stars ( 2 )

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

Part Number: SUM-770372

4.2 out of 5 stars ( 5 )

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

Part Number: GLS-902

4.5 out of 5 stars ( 14 )

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

Part Number: CEE-3116

4.54 out of 5 stars ( 28 )

Estimated Ship Date: Today

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

Part Number: SUM-770321

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Estimated Ship Date: May 20, 2026 if ordered today

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

Part Number: SUM-770324

4.58 out of 5 stars ( 12 )

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

Part Number: CEE-3032

4.25 out of 5 stars ( 4 )

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Subframe Connectors, Chevy, Not for Convertibles, for Use with Factory Subframe, Pair

Part Number: HDT-RC-122

4.4 out of 5 stars ( 5 )

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

Part Number: SUM-770320

5.0 out of 5 stars ( 3 )

Estimated Ship Date: May 20, 2026 if ordered today

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Transmission Crossmembers, Steel, Black Powdercoated, Frame Extension, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, 4L80E, 4L85E, Each

Part Number: SUM-770286

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Estimated Ship Date: May 20, 2026 if ordered today

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Transmission Crossmember, Steel, Black Powdercoated, B-Body, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SUM-770542

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Estimated Ship Date: May 20, 2026 if ordered today

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Transmission Crossmember, Steel, Black Powdercoated, G-Body, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: SUM-770557

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Estimated Ship Date: May 20, 2026 if ordered today

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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 )

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Front Crossmember, 1973-87 C10, Retrofit, Steel, Black Powdercoated, Chevy, Kit

Part Number: QA1-52625

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Transmission Crossmember, Steel, Black Powdercoated, Chevy, 4L80E, 4L85E, Each

Part Number: SUM-770352

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Estimated Ship Date: May 18, 2026 if ordered today

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Frame FX Kit, GM G-Body, Steel, Natural, Hellwig, Frame Rail Brace, Each

Part Number: HEL-11104

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Transmission Crossmember, Steel, Black Powdercoated, B-Body, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SUM-770541

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Estimated Ship Date: May 20, 2026 if ordered today

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CHASSIS BRACE

Part Number: BMR-CB460R

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Estimated Ship Date: May 4, 2026 if ordered today

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