Summit Racing™ Dual-Exhaust Transmission Crossmembers

4.68 out of 5 stars 589 Customer Reviews

Summit Racing™ steel transmission crossmembers allow you to run a true dual-exhaust system with most popular GM transmissions. They have a patented double-hump design, so you don't have to compromise ground clearance by running pipes under the crossmember, and they're a complete bolt-on deal—no custom fabricating or realignment is needed. The parts are made from 1/8 in. thick boxed tubing to handle the frame-twisting power of big blocks. Order the crossmember recommended for your vehicle and transmission application.

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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: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770282

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

Part Number: SUM-770282

4.89 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770302

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

Part Number: SUM-770302

4.86 out of 5 stars ( 56 )

Estimated Ship Date: Today

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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: Today

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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: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770338

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

Part Number: SUM-770338

4.89 out of 5 stars ( 18 )

Estimated Ship Date: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - SUM-770281

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

Part Number: SUM-770281

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1982-2004 S10, 1982-1990 S15, 1991-2004 SONOMA - SUM-770370

Transmission Crossmember, Steel, Chevy, S10, RWD, TH400, 200R4, Each

Part Number: SUM-770370

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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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: Today

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Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770339

Transmission Crossmember, Steel, Black Powdercoated, Boxed Frame Only, 4L80E, 4L85E, Each

Part Number: SUM-770339

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770307

Transmission Frame Extension, Steel, Black, GM G-body, Automatic, Manual, Each

Part Number: SUM-770307

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

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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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1982-2004 S10, 1982-1990 S15, 1991-2004 SONOMA - SUM-770371

Transmission Crossmember, Steel, Chevy, S10, RWD, 4L80E, 4L85E, Each

Part Number: SUM-770371

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770522

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

Part Number: SUM-770522

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770284

Transmission Crossmembers, Steel, Black Powdercoated, Hardtop Models Only, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, 4L80E, 4L85E, Each

Part Number: SUM-770284

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770286

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

Part Number: SUM-770286

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1987-2005 BLAZER, 1983-1991 S15 JIMMY - SUM-770288

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

Part Number: SUM-770288

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770566

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

Part Number: SUM-770566

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770280

Transmission Crossmembers, T-56, Steel, Black Powdercoated, Chevy, GMC, Each

Part Number: SUM-770280

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770544

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

Part Number: SUM-770544

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770557

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

Part Number: SUM-770557

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770562

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

Part Number: SUM-770562

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770556

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

Part Number: SUM-770556

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770524

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

Part Number: SUM-770524

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770287

Transmission Crossmembers, Steel, Black Powdercoated, Frame Extension, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, T-56 Manual, Each

Part Number: SUM-770287

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

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