Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

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Results 1 - 25 of 380

ATI SFI 168-Tooth Flexplate ATI915541

Flexplate, Chevy, 168-Tooth, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Each

Part Number: ATI-915541

4.85 out of 5 stars ( 34 )

Estimated Ship Date: Today

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Summit Racing™ SFI-Approved 168-Tooth Flexplate SUM-G100SFI

Flexplate, 168-Tooth, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevrolet, V8, Each

Part Number: SUM-G100SFI

4.27 out of 5 stars ( 135 )

Estimated Ship Date: Today

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ATI SFI 168-Tooth Flexplate ATI915733

Flexplate Kit, Steel, SFI, Internal Balance, 6-Bolt Crank, LS, Each

Part Number: ATI-915733

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ATI SFI 130-Tooth Flexplate ATI915663

Flexplate, 130-Tooth, Steel, SFI 29.2, Hemi, Chrysler, Dodge, Jeep, Each

Part Number: ATI-915663

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 168-Tooth Flexplate ATI915543

Flexplate, 168-tooth, Steel, Internal Engine Balance, 1-piece Rear Main Seal, SFI 29.1, Chevy, LS, Each

Part Number: ATI-915543

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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ATI SFI Flexplate Kits ATI915737

Flexplate, Steel, SFI, Internal Balance, 8-Bolt Crank, Chevy, LS, Kit

Part Number: ATI-915737

Not Yet Reviewed

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ATI SFI 168-Tooth Flexplate ATI915551

Flexplate, 168-Tooth, Steel, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevrolet, Big Block, Each

Part Number: ATI-915551

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ATI SFI 153-Tooth Flexplate ATI915539

Flexplate GM 153 Teeth Internal Balance

Part Number: ATI-915539

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATI SFI Flexplates ATI915685

Flexplate, Steel, Gen III Hemi to TF-727/904, SFI 29.1, Chrysler, Dodge, Jeep

Part Number: ATI-915685

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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ATI SFI 164-Tooth Flexplate ATI915704

Flexplate, 164-tooth, Internal Balance, Steel, for Chevy Turbo 350 or Powerglide, Ford, 289, 302, 351, 400M

Part Number: ATI-915704

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATI SFI 139-Tooth Flexplate ATI915545

Flexplate, 139-tooth, Internal Balance, Steel, SFI-approved, Chevy, GMC, Each

Part Number: ATI-915545

Not Yet Reviewed

Estimated Ship Date: Today

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ATI SFI 157-Tooth Flexplate ATI915710

Flexplate, 157-tooth, Internal Balance, Steel, SFI 29.1, Ford, Each

Part Number: ATI-915710

Not Yet Reviewed

Estimated Ship Date: Today

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ATI SFI 164-Tooth Flexplate ATI915707

Flexplate, 164-tooth, Steel, Internal Engine Balance, SFI 29.1, Ford, Lincoln, Mercury, Each

Part Number: ATI-915707

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 166-Tooth Flexplate ATI915563

Flexplate, 166-Tooth, External Balance, SFI 29.1, Oldsmobile, 400, 425, Each

Part Number: ATI-915563

Not Yet Reviewed

Estimated Ship Date: Oct 3, 2025 if ordered today

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Estimated Ship Date: Oct 3, 2025 if ordered today

ATI SFI 166-Tooth Flexplate ATI915565

Flexplate, 166-Tooth, External Engine Balance, SFI 29.1, Oldsmobile, V8, Each

Part Number: ATI-915565

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 166-Tooth Flexplate ATI915564

Flexplate Oldsmobile All V-8 166 Teeth Internal Balance

Part Number: ATI-915564

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 166-Tooth Flexplate ATI915567

Flexplate, Pontiac 326-455, 166 Teeth, 2.75 in. I.D., Internal Balance, Each

Part Number: ATI-915567

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 164-Tooth Flexplate ATI915719

Flexplate, 164-tooth, Steel, Internal Engine Balance, SFI 29.1, Each

Part Number: ATI-915719

Not Yet Reviewed

Estimated Ship Date: Today

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ATI SFI 164-Tooth Flexplate ATI915708

Flexplate, SFI, Ford 289/302, 164 Teeth, External Balance, Each

Part Number: ATI-915708

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI SFI 166-Tooth Flexplate ATI915562

Flexplate, 166-tooth, Internal Balance, Steel, SFI 29.1, Oldsmobile, 330, 400, 425, Each

Part Number: ATI-915562

Not Yet Reviewed

Estimated Ship Date: Oct 2, 2025 if ordered today

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Estimated Ship Date: Oct 2, 2025 if ordered today

ATI SFI 153-Tooth Flexplate ATI915533

Flexplate, 153-Tooth, Internal Balance, 0-Balance, 1-Piece Rear Main Seal, SFI 29.1, Chevy, V8, Each

Part Number: ATI-915533

Not Yet Reviewed

Estimated Ship Date: Oct 3, 2025 if ordered today

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Estimated Ship Date: Oct 3, 2025 if ordered today

ATI SFI 164-Tooth Flexplate ATI915700

Flexplate, 164-Tooth, Internal Engine Balance, Ford, Big Block, C-6, Each

Part Number: ATI-915700

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATI SFI 164-Tooth Flexplate ATI915705

Flexplate, 164-tooth, External, 28 oz. Imbalance, Steel, SFI 29.1, Ford, Each

Part Number: ATI-915705

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 3, 2025 if ordered today

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Estimated Ship Date: Oct 3, 2025 if ordered today

ATI SFI Flexplate Kits ATI915727

Flexplate Ford Small Block 164 Teeth Internal Balance C-4/AOD

Part Number: ATI-915727

Not Yet Reviewed

Estimated Ship Date: Today

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ATI SFI 184-Tooth Flexplate ATI915702

Flexplate, Internal Balance, Ford, 332/428 FE, C-6/E4OD, Each

Part Number: ATI-915702

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATI SFI 168-Tooth Flexplate ATI915544

Flexplate, 168-tooth, Steel, Internal Engine Balance, 2-piece Rear Main Seal, Chevy, Small Block

Part Number: ATI-915544

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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