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 587

Mr. Gasket 3-4 Speed Automatic Floor Shifters 7668

Automatic Shifter, 3-4 Speed Floor Shifter, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: MRG-7668

4.1 out of 5 stars ( 41 )

Estimated Ship Date: Today

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Summit Racing™ Floor Mount Automatic Shifters SUM-700030

Automatic Shifter, 3-4 Speed Floor Mount Shifter, Universal, Chevy, Chrysler, Dodge, Ford, Lincoln, Mercury, Plymouth, Kit

Part Number: SUM-700030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Sonnax 3-4 Relay O-Ringed End Plug Kits 77964-08K

Plug Kit, 3-4 Shift, Kit

Part Number: SOX-7796408K

5.0 out of 5 stars ( 3 )

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Sonnax 3-4 Clutch Boost Springs 77763-01

3-4 Clutch Boost Springs, GM, 4L60, 4L60E, 4L65E, 4L70E, Set of 10

Part Number: SOX-77763-01

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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TransGo 3-4 and Forward Clutch Spring Kits 7-CS

Clutch Spring Kit, 3-4 Shift, Hi Rev, 700R4, 4L60E, Kit

Part Number: TRG-7-CS

4.33 out of 5 stars ( 3 )

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McLeod Steel 164-Tooth Flywheel 463200

Flywheel, Steel, 164-Tooth, 34 lb., Internal Engine Balance, Ford, Small Block, Each

Part Number: MCL-463200

5.0 out of 5 stars ( 5 )

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Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-34L80FM

Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-34L80FM

Transmission Dipstick, Braided Stainless Steel, Black, Firewall Mount, Chevy, 4L80E, Each

Part Number: LOK-XTD-34L80FM

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-34L60EFM

Transmission Dipstick, Braided Stainless Steel, Black, Firewall Mount, 24 in., Chevy, 4L60E, Each

Part Number: LOK-XTD-34L60EFM

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

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FTI Performance TH400 Level 4 Transmissions TH400-4EB2

GM TH400 RACING Trans, CHEVY CASE,SHORT SHAFT, 900HP RATED, BILLET REVERSE PATTERN TRANSBRAKE WITH ENGINE BRAKING , 34 ELEMENT SPRAGUE

Part Number: FTI-TH400-4EB2

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-34L80FM36

Transmission Fluid Dipsticks, Midnight Series Flexible Braided Stainless, Firewall Mount, Case Entry, Black Tube, Black Handle, Chevy, 4L80E, Each

Part Number: LOK-XTD34L80FM36

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Yukon Gear & Axle Dura Grip Positraction Carriers Ford 8.8 Inch 12497

Dura Grip Positraction Carrier, Traction-Loc, Ford 8.8 in. Axle, 34 Spline, Ford, Each

Part Number: YGA-12497

Not Yet Reviewed

Estimated Ship Date: Today

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Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks TD-34L60EFM

Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 4L60E, 4L65E, 4L70E, Each

Part Number: LOK-TD34L60EFM

4.71 out of 5 stars ( 24 )

Estimated Ship Date: Today

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Hughes Performance Street and Strip Transmissions 34-2X

Automatic Transmission, Forward Shift Pattern, Manual Valve Body, Chevy, TH400, Each

Part Number: HUP-34-2X

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

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Estimated Ship Date: May 20, 2026 if ordered today

TCI Automatic Transmission Clutch Friction Plates 374090

Clutch Pack 3-4 High Perf. 4L60E/700R4 Increases Pack from Six to Nine

Part Number: TCI-374090

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Sonnax Accumulator Springs 12861-01

Automatic Transmission Accumulator Spring, 3-4 Accumulator, 42RE, 42RH, 44RE, 44RH, 46RH, 47RE, 47RH, 48RE, Chrysler, Each

Part Number: SOX-12861-01

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Hughes Performance Street and Strip Transmissions 34-2B

Automatic Transmission, Forward Shift Pattern, Full Manual Valve Body, Chevy, TH400, Each

Part Number: HUP-34-2B

Not Yet Reviewed

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Trans-Dapt Performance Chrome Transmission Dipsticks 4994

Transmission Dipstick, Steel, Chrome, TH350, 34 in. Length, Each

Part Number: TRD-4994

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Yukon Gear & Axle Trac-Loc Carrier Cases Ford Super 8.8 Inch, IRS YC F8.8-4-34T/L

Trac-Lok Differential Carrier, Ford 8.8 in., 34 Spline, 3:31 and Up Ratio, Each

Part Number: YGA-20162

Not Yet Reviewed

Estimated Ship Date: Today

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Motive Gear OEM Replacement Axle Shafts for 2015-2020 F-150 - MG3055

Axle Shaft, Direct Fit, Ford 8.8 in., 34 Spline, 6 x 135mm Bolt Pattern, Left Rear, Ford, F-150, Each

Part Number: MGR-MG3055

Not Yet Reviewed

Estimated Ship Date: Today

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Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks TD-34L80FM

Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 4L80E, Each

Part Number: LOK-TD34L80FM

4.36 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Motive Gear OEM Replacement Axle Shafts for 2015-2020 F-150 - MG3057

Axle Shaft, Direct Fit, Ford 9.75 in., 34 Spline, 6 x 135mm Bolt Pattern, Left Rear, Ford, F-150, Each

Part Number: MGR-MG3057

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

Powertrax Grip Pro Traction Systems Ford Super 8.8 Inch, IRS GT108834

Differential Carriers, Grip Pro Traction System, 34 Spline, 8.8 in. Super Ford, Each

Part Number: PWT-GT108834

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

Hughes Performance Street and Strip Transmissions 34-1T

Automatic Transmission, Forward Shift Pattern, Automatic/Manual Valve Body, Chevy, TH400, Truck, RWD, Each

Part Number: HUP-34-1T

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

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Estimated Ship Date: May 20, 2026 if ordered today

Hughes Performance Street and Strip Transmissions 34-1

Automatic Transmission, Forward Shift Pattern, Automatic, Manual Valve Body, Chevy, TH400, Each

Part Number: HUP-34-1

3.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Motive Gear Ten Factory Axle Shafts for 2005-2008 F-150, 2006-2008 MARK LT - MG25163

Axle Shaft, Direct Fit, Ford 9.75 in., Length 35.27 in., 34 Spline, 6 x 135mm Bolt Pattern, Left Rear, Ford, F-150, Kit

Part Number: MGR-MG25163

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

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