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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Transmission Specialties Lock-Up Street/Strip 1,800-2,400 Stall Torque Converter 124L80HS

Transmission Specialties Lock-Up Street/Strip 1,800-2,400 Stall Torque Converter 124L80HS

Torque Converter, Lockup Street/Strip, 1,800-2,400 RPM Stall, Balanced, Billet Piston, 12 in. Dia., 11.5 in. BC, 4L80E, GM, Small/Big Block Chevy,Each

Part Number: TOS-124L80HS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Motor Mount Bolts SUM-910242

Motor Mount Bolts, Zinc Plated, Hex, With Washers, Mount to Block, Ford, Small Block, SBF, Windsor, Set of 4

Part Number: SUM-910242

5.0 out of 5 stars ( 3 )

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Silver Sport Transmission - Clutch Linkage Service Kits for 1967-1969 CAMARO - CAG-CL39-A

Clutch Linkage Kit 1967 1969 Camaro with Big Block Chevy Engine

Part Number: IST-CAG-CL39-A

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Lakewood Inspection Covers 50356

Bellhousing Inspection Cover, Steel, Black, Each

Part Number: LAK-50356

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Lakewood Inspection Covers 50360

Flywheel and Flexplate Dust Covers, Inspection Covers, Steel, Black Powdercoated, for Use with LAK-LK7000 Bellhousing, Chrysler, Dodge, Ram, Each

Part Number: LAK-50360

Not Yet Reviewed

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Chevrolet Performance Flexplate Shims 12638261

Flywheel and Flexplate Shims and Spacer, Replacement, OEM Flexplate Spacer, Steel, Natural Finish, 5.315 in. OD, 0.012 in. Thick, Each

Part Number: NAL-12638261

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Allstar Performance 168-Tooth Flexplate ALL26845

Flexplates, Allstar Performance Flexplates, 168-tooth, Internal Balance, Steel, Chevy, Each

Part Number: AAF-ALL26845

Not Yet Reviewed

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TCI Forged 153-Tooth Flexplate 399554

Flexplate, BBC 454 Eng./GM Trans. External Bal., Small Pattern 153 Tooth, SFI

Part Number: TCI-399554

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Pioneer 168-Tooth Flywheel FW-101

Flywheel, OEM Cast, 168-Tooth, 30 lb., External Engine Balance, Chevy, BBC, Each

Part Number: PIO-FW-101

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Summit Racing™ OE Replacement 168-Tooth Flywheel SUM-700096

4.75 out of 5 stars ( 4 )

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Chevrolet Performance 168-Tooth Flywheel 12582964

Flywheel, Iron, 168-Tooth, 14 in. Outside Diameter, 11.5 in. Clutch, Chevy, 572, Crate Engine, Each

Part Number: NAL-12582964

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential AAM 11.5 Inch 14-bolt 915A568

Differential, Eaton Detroit Truetrac, 30-Spline, AAM, 11.5 in., 14-Bolt, Each

Part Number: ETN-915A568

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Summit Racing™ SFI-Approved 168-Tooth Flexplate SUM-G102SFI

Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, 454, Each

Part Number: SUM-G102SFI

4.53 out of 5 stars ( 57 )

Estimated Ship Date: Today

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Chevrolet Performance SuperMatic 2,400-2,800 Stall Torque Converter 19299800

Torque Converter, 2,400-2,800 Stall, 4L60/65/70/75-E, Late LS V-8 trans. Mates to Early Gen 1 SBC/BBC, Dual Bolt Pattern, 10.75 and 11.50 in. Each

Part Number: NAL-19299800

Not Yet Reviewed

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Mantic Clutch USA 9000 Series Twin Disc Clutch Kits M921CHVY-0-168T-6ST

Clutch Kit GM SBC BBC Tremec T56 TKO TKX. Twin Disc 1-1/8 x26 Spline. Sprung Hub, Ceremetallic, SFI 1.1, Billet, Rebuildable, Steel, 6 Bolt.

Part Number: MNC-S0001

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Engine Works Flexplates 454168L

BBC SFI FLEXPLATE 91-UP 1-PC SEAL 168 TOOTH

Part Number: EW1-454168L

Not Yet Reviewed

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Engine Works Flexplates 854168E

PRO SERIES BBC SFI FLEXPLATE 2-PC SEAL 168-T

Part Number: EW1-854168E

Not Yet Reviewed

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Chevrolet Performance SuperMatic 3,000-4,000 Stall Torque Converter 19299801

Torque Converter, 3,000-3,400 Stall, 4L60/65/70/75-E, Late LS V-8 trans. Mates to Early Gen 1 SBC/BBC, Dual Bolt Pattern, 10.75 and 11.50 in. Each

Part Number: NAL-19299801

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Summit Racing™ OE Replacement 168-Tooth Flywheel SUM-700096

Flywheels, OE Replacement, Cast Iron, 168-tooth, 30 lbs., External Engine Balance, Chevy, Big Block, Each

Part Number: SUM-700096

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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TCI Forged 168-Tooth Flexplate 399973

Flexplate, 168-Tooth, External Balance, 1-Piece Rear Main Seal, SFI 29.1, Chevy, 454/7.4L, Each

Part Number: TCI-399973

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Sachs Stock Replacement 168-Tooth Flywheel NFW1050

Flywheel Cast Iron 168 tooth GM Truck LS Gen III, 6 Bolt

Part Number: SXR-NFW1050

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Transmission Pans SUM-G3878B

Transmission Pan, Stock Depth, Steel, Black Powdercoated, Finned, 4L80E, 4L85E, Chevy, Each

Part Number: SUM-G3878B

1.0 out of 5 stars ( 2 )

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TransGo Automatic Transmission Reprogramming Kits 6L80-TOW&PRO

Automatic Transmission Shift Kits, Reprogramming Kit, Performance/Tow/Haul, GM, 6L45, 6L50, 6L80, 6L90, Kit

Part Number: TRG-6L80-TOW-PRO

5.0 out of 5 stars ( 2 )

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Summit Racing™ SFI-Approved 168-Tooth Flexplate SUM-G112SFI

Flexplate, 168-Tooth, External Engine Balance, Chevy Gen V and VI 454, SFI 29.1, Each

Part Number: SUM-G112SFI

4.0 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Banks Power Ram-Air 14 Bolt AAM 10.5/11.8 Inch Differential Cover 19249

Differential Cover, Power Ram-Air, Satin Black, Milled Aluminum, Chevy, GMC, Dodge, AAM 11.5/11.8, 14-Bolt, Rear Axle, Each

Part Number: GBE-19249

4.53 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Chevrolet Performance 168-Tooth Flywheel 14096987

Flywheel, Cast Iron, 168-Tooth, External Engine Balance, Chevy Big Block Gen V and Gen VI, Each

Part Number: NAL-14096987

4.89 out of 5 stars ( 9 )

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