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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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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.

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.

Individual Parts

Results 1 - 25 of 281

Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic/Manual Valve Body, Chevy, 700R4, Each

Part Number: TCI-371004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission Controllers, Sniper 2 EFI, Controller and Power Harness, Kit

Part Number: SNE-551-103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission Package, SuperMatic 6L80E, 2,400-2,800 Stall Converter, Chevrolet, LSX Engines, RWD, Kit

Part Number: NAL-19366637

Not Yet Reviewed

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission Controllers, Sniper EFI, Standalone Kit, Carbureted Applications, Kit

Part Number: SNE-551-102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

This product may not be eligible for select promotional offers

GO Shift Electronic Transmission Control Kit GM, 4L60E, 4L65E, 4L80E, 4L85E, Kit

Part Number: FIF-20010

3.7 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic, Manual Valve Body, Chevy, 700R4, Each

Part Number: TCI-371000

3.24 out of 5 stars ( 17 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, GM, F-Body, 1967-69, Kit

Part Number: AWR-COGM-F1FX

Not Yet Reviewed

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission Controller, Atomic, Chevy, Ford, Lincoln, Mercury, Each

Part Number: MSD-2760

3.74 out of 5 stars ( 19 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission, SuperMatic 6L80-E, 3000-3400 Stall Converter, 650 lb. ft. Torque, Controller, Harness, Chevrolet, LS/LSX Crate Engines, Kit

Part Number: NAL-19417102

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Transmission Controllers, Sniper EFI, Controller With Power Harness, Sniper 1 applications, Kit

Part Number: SNE-551-101

Not Yet Reviewed

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Transmission Controller, Chevy, 4L60E, 4L65E, 4L70E, Each

Part Number: NAL-19302405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Tailshaft Adapter, 6-Bolt To 4-Bolt, Billet Aluminum, Natural, GM 4L60E, 4WD, Each

Part Number: ADD-50-0405E

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Axle Shaft, Semi-Floating, Dana 44, Rear, Steel. 31.890 in. Length, Jeep, Each

Part Number: SDH-2004449-1

4.87 out of 5 stars ( 69 )

Estimated Ship Date: Today

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GearStar GM 4L65E Level 4 Transmissions GS4L65EL4

$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $5,695.00

Rebate Expires: 12/31/2025

Get $250 back after rebate on this Gearstar Transmission! Go to https://www.summitracing.com/go/ges to redeem offer.

Get $250 back after rebate on a Gearstar Performance Level 3, Level 4, or Level 5 Transmission. Go to https://www.summitracing.com/go/ges to redeem offer. Valid on purchases made between 12/1/25 and 12/31/25. Rebate submission must be postmarked within 30 days of purchase. Allow 2-4 weeks for processing. Rebate for end consumer only.

Automatic Transmission, Up to 650 hp/600 ft. lbs, Rated Max, Level 4, 4L65E, RWD, 2,600 - 4,000 Stall, LS Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L65EL4

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

  • $250.00 Mail-In Rebate

    Price after Manufacturer Rebate: $5,695.00

    Rebate Expires: 12/31/2025

    Get $250 back after rebate on this Gearstar Transmission! Go to https://www.summitracing.com/go/ges to redeem offer.

    Get $250 back after rebate on a Gearstar Performance Level 3, Level 4, or Level 5 Transmission. Go to https://www.summitracing.com/go/ges to redeem offer. Valid on purchases made between 12/1/25 and 12/31/25. Rebate submission must be postmarked within 30 days of purchase. Allow 2-4 weeks for processing. Rebate for end consumer only.

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Estimated Ship Date: Today

This product may not be eligible for select promotional offers

GearStar GM 4L65E Level 3 Transmissions GS4L65EL3

$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $4,695.00

Rebate Expires: 12/31/2025

Get $250 back after rebate on this Gearstar Transmission! Go to https://www.summitracing.com/go/ges to redeem offer.

Get $250 back after rebate on a Gearstar Performance Level 3, Level 4, or Level 5 Transmission. Go to https://www.summitracing.com/go/ges to redeem offer. Valid on purchases made between 12/1/25 and 12/31/25. Rebate submission must be postmarked within 30 days of purchase. Allow 2-4 weeks for processing. Rebate for end consumer only.

Automatic Transmission, Up to 500 hp/500 ft. lbs, Rated Max, Level 3, 4L65E, RWD, 2,600 - 3,200 Stall, LS Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L65EL3

Not Yet Reviewed

Estimated Ship Date: Today

  • $250.00 Mail-In Rebate

    Price after Manufacturer Rebate: $4,695.00

    Rebate Expires: 12/31/2025

    Get $250 back after rebate on this Gearstar Transmission! Go to https://www.summitracing.com/go/ges to redeem offer.

    Get $250 back after rebate on a Gearstar Performance Level 3, Level 4, or Level 5 Transmission. Go to https://www.summitracing.com/go/ges to redeem offer. Valid on purchases made between 12/1/25 and 12/31/25. Rebate submission must be postmarked within 30 days of purchase. Allow 2-4 weeks for processing. Rebate for end consumer only.

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Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Wiring Harness, Jeep JL/JT Z-Locker OEM Controller Harness, for Use with OEM Lockers, Jeep, Each

Part Number: ZAU-Z-LKR-OEM

5.0 out of 5 stars ( 29 )

Estimated Ship Date: Today

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Automatic Transmission Controller, 4L80E, 4L85E, Chevy, Each

Part Number: NAL-19302410

Not Yet Reviewed

Estimated Ship Date: Today

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Transmission Harness, All-In-One Transmission Wiring Harness, Manual, T-56, Ford, GM, Each

Part Number: BTM-7100000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Torque Converter Lockup Kit, Pressure Switch, In-line Fuse, GM, 200-4R, 700R4, 4L60, Kit

Part Number: AWW-500412

4.06 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, Ford, Cougar, Mustang 1965-73, Kit

Part Number: AWR-COFO-M1EX

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

This product may not be eligible for select promotional offers

Differential, Electronic Locker, ELocker, 30-Spline, Toyota 9.5 in., Toyota, Land Cruiser 40, 60, 70, 80 Series, Each

Part Number: ETN-14212-1

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Transmission, Early 6 bolt GM Bellhousing, Automatic Valve Body, Standard Shift Pattern, GM, 4L80E, RWD, 95-96 Electronics, Each

Part Number: SUM-700475

Not Yet Reviewed

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Transmission Controller, Wireless, Bluetooth, GM 4L60E, 4L65E, 4l70E, 4L80E, 4L85E, TCI 4X, 6X, Each

Part Number: TCI-302600

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Automatic Shifter, Electronic Sport Shifters, Detent, 6.000 in. Straight Black Stick, 3/8-24 in., Black Mushroom Knob, 6L80E, Each

Part Number: LOK-ES6L80FXMB

Not Yet Reviewed

Estimated Ship Date: Today

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