Summit Racing™ Dual-Exhaust Transmission Crossmembers

4.68 out of 5 stars 584 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: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1982-2004 S10 - SUM-770309

Crossmember, Transmission, Steel, Black, GM, 4L60E 700R4, 200-4R, TH350, Powerglide, Each

Part Number: SUM-770309

4.78 out of 5 stars ( 40 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770308

Crossmember, Transmission, Steel, Black, 700R4, 200-4R, TH350, TH400, Powerglide, Each

Part Number: SUM-770308

4.63 out of 5 stars ( 75 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

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: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770322

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

Part Number: SUM-770322

4.52 out of 5 stars ( 21 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

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: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770310

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

Part Number: SUM-770310

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770336

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

Part Number: SUM-770336

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers SUM-770354

Crossmember, Transmission, Steel, Black, GM, TH350, Powerglide, Muncie, Chevy, B-Body, Each

Part Number: SUM-770354

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

Summit Racing™ Dual-Exhaust Transmission Crossmembers for 1975-1981 CAMARO, FIREBIRD, 1975-1979 NOVA - SUM-770316

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 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

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