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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Wilwood Drum Brake Backing Plates 249-10095/96

Wilwood Drum Brake Backing Plates 249-10095/96

BRACKET KIT, DISC/DRUM, C10 CHEVY, 2.44

Part Number: WIL-249-10095-96

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Summit Racing™ Billet Shifter Levers SUM-700050

Shifter Stick, Shift Lever, Lay Back, 10 in. Length, Billet Aluminum, Black Anodized, Shift Knob, Each

Part Number: SUM-700050

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Wilwood Drum Brake Backing Plates 249-11422/23

BRACKET KIT, DISC/DRUM, SMALL FORD, 2.66

Part Number: WIL-249-11422-23

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Sonnax Clutch Backing Plates 74140-01K

Clutch Backing Plate, 4L60, 700R4, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-74140-01K

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Sonnax Clutch Backing Plates 34144HD-02

Clutch Backing Plate, 4L80-E, 4L85-E, Kit

Part Number: SOX-34144HD-02

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Sonnax Clutch Backing Plates 34144HD-01

Clutch Backing Plate, THM400, 4L80-E, Kit

Part Number: SOX-34144HD-01

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Rhodes Race Cars Fabricated 9 in. Housing Back Braces 16-0100

Differential Housing Brace, Fabricated Housing, Mild Steel, 0.750 in. Thick, Ford 9 in., Kit

Part Number: RHC-16-0100

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Moser Engineering Axle Housing Back Braces 7010

Differential Housing Brace, Mild Steel, Ford, 9 in., Round Back, Edsel Designed Axle Only, Each

Part Number: MSR-7010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ACDelco Automatic Transmission Clutch Backing Plates 08675519

Automatic Transmission Clutch Packs, Automatic Transmission Clutch Backing Plates, Chevrolet, GMC, Each

Part Number: ADO-8675519

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Automatic Transmission Clutch Backing Plates 24212460

Automatic Transmission Clutch Steels, ACDelco GM Genuine Parts Automatic Transmission Clutch Backing Plates, Each

Part Number: ADO-24212460

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Rhodes Race Cars Fabricated 9 in. Housing Back Braces 16-0101

Differential Housing Brace, Fabricated Housing, 4130 Chromoly Steel, 0.062 in. Thick, Ford 9 in., Kit

Part Number: RHC-16-0101

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Sonnax Clutch Backing Plates 36965-03

BACKING PLATE

Part Number: SOX-36965-03

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

ACDelco Automatic Transmission Clutch Backing Plate Retainer Rings 24259301

Auto Trans Clutch Backing Plate Retainer Ring

Part Number: ADO-24259301

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Strange Brake Backing Plate Fastener Kits H1135STKIT

Axle Housing End Fasteners, T-bolts, 1/2-20 in. RH Thread, Steel, Black Oxide, Nuts, Washers, Ford 9 in., Kit

Part Number: STR-H1135STKIT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moser Engineering Axle Housing Back Braces 7015

Differential Housing Brace, Mild Steel, Mopar, 8.75 in., Each

Part Number: MSR-7015

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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Strange Brake Backing Plate Fastener Kits H1133STKIT

Axle Housing End Fasteners, T-bolts, 3/8-24 in. Thread, Steel, Black Oxide, Nuts, Chrysler 8.75 in., Kit

Part Number: STR-H1133STKIT

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Moser Engineering Axle Housing Back Braces 7000

Differential Housing Brace, Mild Steel, Ford, 9 in., OEM Heavy Duty Housing, Round Tube, Each

Part Number: MSR-7000

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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PEM Racing Axle Housing Back Braces HNBBF9

Axle Housing Brace, Steel, Natural, Designed for PEM Floater 9 in. Ford Rear End Housings, Each

Part Number: PE2-HNBBF9

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Shiftworks Neutral Safety and Back-up Light Switch Relocation Kits SW653

Neutral Safety Switch, Neutral Safety and Backup Light Switch Relocation, Metal/Plastic, Chevy, Pontiac, Kit

Part Number: SIW-SW653

4.3 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Hurst Competition Plus Flat Shifter Sticks for 1955-1957 BEL AIR, SEDAN DELIVERY, 1957 DEL RAY - 5388620

Replacement Shifter Stick, Steel, Chrome, Lay Back, Kit Number 3913780, Each

Part Number: HUU-5388620

4.87 out of 5 stars ( 39 )

Estimated Ship Date: Tomorrow

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Fastshafts Ford 9 in. Housing Fasteners TB9075

Housing End T-Bolts, Ford 9 in., Backing Plate T-Bolts, Nuts, Diameter, Set of 8

Part Number: AXE-TB9075

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Lokar Manual Transmission Shifter Levers MSL6B2

Shifter Stick, Double Bend, Lay Back, Chrome, 16.00 in. Length, Fits Tremec/Borg Warner T-5, T-45, T-56 Only

Part Number: LOK-MSL6B2

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Hurst Tube Style Shifter Sticks 53800HST

Shifter Stick, Steel, Chrome, Lay Back, 16.00 in. Length, 3/8 in.-16 Threads, Universal, Each

Part Number: HUU-53800HST

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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XClutch Stage 1 Clutch Kits XKTY22004-1T

Clutch Kit - Stage 1 Sprung Organic Clutch Disc with Steel Backed Facing

Part Number: XCL-XKTY22004-1T

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Hurst Competition Plus Round Shifter Sticks 5389015

Shifter Stick, Competition Plus, Round, Lay Back, Steel, Chrome, 8.240 in. Length, Each

Part Number: HUU-5389015

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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