BUICK RIVIERA Summit Racing Transmission Crossmembers

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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: Tomorrow

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Estimated Ship Date: Tomorrow

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

Part Number: SUM-770372

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Crossmember, Transmission, Steel, Black, GM, Buick, Oldsmobile, Cadillac, TH400, Each

Part Number: SUM-770340

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today