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 589

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: Tomorrow

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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: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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

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 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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TransGo Automatic Transmission Shift Valves 7-4-V

Shift Valve, Custom 3-4 Shift, THM 700R4, Each

Part Number: TRG-7-4-V

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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SCS Gearbox 10-Spline Professional Series Quick-Change Gears 34-PRO

Quick Change Gears, Professional, 10-Spline, E 9310 Steel, Set 34, 19/26 Teeth, Set

Part Number: SGB-34-PRO

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

Richmond Gear Lightweight Quick-Change Gear Sets 58-0027-1

Quick Change Gears, 10-spline, SAE 8620 Steel, 22/34 Teeth, Heat-Treated, Set

Part Number: RMG-58-0027-1

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 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 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

OER Authorized Transmission Dipsticks T4994

Dipstick, TH350 Chrome Trans Dip Stick And Tube 34"

Part Number: OER-T4994

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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