1978 Chassis Components

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

Part Number: SUM-770301

4.74 out of 5 stars ( 47 )

Estimated Ship Date: 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 )

Estimated Ship Date: Today

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

Part Number: SUM-770317

4.79 out of 5 stars ( 24 )

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

Part Number: TRD-6419

4.33 out of 5 stars ( 3 )

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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 ( 8 )

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

Part Number: GLS-902

4.46 out of 5 stars ( 13 )

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

Part Number: SUM-770318

4.6 out of 5 stars ( 5 )

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

Part Number: GMK-4062770781L

5.0 out of 5 stars ( 2 )

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

Part Number: HOK-12614HKR

4.0 out of 5 stars ( 1 )

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Transmission Crossmember

Part Number: UPI-3108-B

Not Yet Reviewed

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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, 700R4, 4L60E, Each

Part Number: SUM-770372

4.2 out of 5 stars ( 5 )

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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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Transmission Crossmember, LS Swap, Steel, Black, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: TRD-6422

2.0 out of 5 stars ( 1 )

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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 )

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

Part Number: SUM-770316

5.0 out of 5 stars ( 1 )

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Trans Crossmember, '75-81 F-BODY, FOR USE WITH TKX,TKO & SBC OR LS MOTOR, FITS STOCK SUB FRAME WITH MOTOR IN FACTORY SBC POSITION

Part Number: BTM-4601011

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Chassis Stiffeners, Frame Rail to Crossmember Braces, Front, Steel, Black Powdercoated, Chevy, GMC, Pair

Part Number: ART-11369550

3.67 out of 5 stars ( 3 )

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

Part Number: TRD-6519

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Transmission Crossmember, Steel, Black Powdercoated, Tremec TKO, Chevrolet, Pontiac, RWD, Each

Part Number: HUU-67510012

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Transmission Crossmember, X-Factor, Aluminum, Silver Powdercoated, Chevy, C-10 Trucks, Each

Part Number: AWR-XFGM-11201

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Front Crossmemners, Replacement, Crossmember, Center Frame, Steel, Natural Finish, 32.7 in. Long, with Hardware, Welding Required, Chevy, Each

Part Number: RBF-RB7363

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Transmission Crossmember, X-Factor, Aluminum, Black Powdercoated, Adjustable, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: AWR-XMGM-20013

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 6, 2026 if ordered today

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