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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.

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Individual Parts

Results 1 - 25 of 415

Torque Converter, SB Series, 11.0 in. Diameter, 2,800 rpm Flash Stall, 4L60E, 4L65E, 4L70E, Lockup, Each

Part Number: FTI-SB2800LS

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Torque Converter, SB Series, 11.0 in. Diameter, 2,800 rpm Flash Stall, 4R70W, 4R75W, AODE, Lockup, Each

Part Number: FTI-SB2800DE

4.13 out of 5 stars ( 8 )

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Differential, No-Slip Traction System, 28-Spline, Ford, 8 in., Each

Part Number: PWT-92-0680-2800

5.0 out of 5 stars ( 3 )

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Grizzly Locker, Dana 60, 35 Spline, 4.56 Up Ratio, Each

Part Number: YGA-28005

Not Yet Reviewed

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Vacuum Modulator, Adjustable, GM, Powerglide, Each

Part Number: TCI-280001

4.38 out of 5 stars ( 8 )

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Automatic Transmission Bushings, Case Bushing, Carrier-Output Shaft, GM Powerglide, Each

Part Number: SOX-28002

5.0 out of 5 stars ( 1 )

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Grizzly Locker, Dana 44, 30 Spline, 3.92 Up Ratio, Each

Part Number: YGA-28001

Not Yet Reviewed

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Grizzly Locker, Dana 60, 35 Spline, 4.10 Down Ratio, Each

Part Number: YGA-28003

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Flywheel, Forged Steel, Lightweight, 11.500 lbs., for use on Acura®, for use on Honda®, Each

Part Number: CCX-2-800-ST

Not Yet Reviewed

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Torque Converter, SB Series, 11.0 in. Diameter, 2,800 rpm Flash Stall, 4R70W, 4R75W, AODE, Lockup, Each

Part Number: FTI-SB2800DES

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Grizzly Locker, Dana 60, 30 Spline, 4.10 Down Ratio, Each

Part Number: YGA-28002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Grizzly Locker, Ford 9.0 in., 28 Spline, Each

Part Number: YGA-28008

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Automatic Transmission Bushings, High-Gear Clutch Drum, GM Powerglide, Each

Part Number: SOX-28005

Not Yet Reviewed

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Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 28-spline, Rear, Ford 8 in., Each

Part Number: YGA-28006

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Grizzly Locker, Dana 30, 27 Spline, 3.73 Up Ratio, Each

Part Number: YGA-28000

5.0 out of 5 stars ( 1 )

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Torque Converter, 2800 stall 245mm single disk, 4L60/65/70E LS pilot

Part Number: YNK-SS2800LS

Not Yet Reviewed

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Flywheel, Forged Steel, Ultra Light, 11.000 lbs., for use on Acura®, for use on Honda®, Each

Part Number: CCX-2-800-STU

Not Yet Reviewed

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Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 30-spline, Dana 60, for 4.56 Ratio and Up, Each

Part Number: YGA-28004

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Yukon Grizzly Locker for Ford 8" with 31 spline axles

Part Number: YGA-28007

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

TORQUE CONVERTER

Part Number: FTI-ESB2800LS

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

GM TORQUE CONVERTER, 4L80E, 4L85E, LS MOTOR 2800-3000 STALL

Part Number: FTI-SRLS43082

1.0 out of 5 stars ( 1 )

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Hays Twister 3/4 Race Torque Converter 1984- 97 GM, 4L60/4L60E/700R4, 2800- 3200 RPM stall

Part Number: HAY-97-1G28Q

1.0 out of 5 stars ( 1 )

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Seal N/A

Part Number: FWB-SS2800

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

GM TORQUE CONVERTER, 6L80E, 6L85E,6L90E TRIPLE CLUTCH 2800-3000 STALL

Part Number: FTI-SRL83082-3

Not Yet Reviewed

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Hays Twister 3/4 Race Torque Converter 1984- 97 GM, 4L60/4L60E/700R4, 2400- 2800 RPM stall

Part Number: HAY-97-1G24Q

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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