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 48

Richmond Gear Manual Transmission Tailshafts 7246000

Manual Trans Assembly

Part Number: RMG-7246000

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

Summit Racing™ TH400 Tailshaft Housings SUM-700407

Tailshaft Housing, Aluminum, 4 in. Housing, GM, TH400, Each

Part Number: SUM-700407

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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FTI Performance Transmission Tailshaft Plugs F12005

Transmission Tailshaft Plug, Red, Plastic, 27-Spline, GM, Powerglide, TH350, 200-4R, Each

Part Number: FTI-F12005

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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COMP Cams Transmission Tailshaft Plugs POW301230

Transmission Tailshaft Plug, Universal Double End, Plastic, Red, Each

Part Number: CCA-POW301230

Not Yet Reviewed

Estimated Ship Date: Today

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Moroso Transmission Tailshaft Plugs 41060

Tailshaft Plug, Transmission, 1 1/2 in. O.D., Each

Part Number: MOR-41060

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATI Automatic Transmission Tailshaft Dust Plugs ATI973084

Transmission Tailshaft Dust Plug, Black, Plastic, THM400, Each

Part Number: ATI-973084

Not Yet Reviewed

Estimated Ship Date: Today

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Advance Adapters 700R to TH350 Tailshaft Adapters 50-8506

Advance Adapters 700R to TH350 Tailshaft Adapters 50-8506

Automatic Transmission Tailshaft Adapter, Aluminum, Natural, GM, 700R to TH350, Each

Part Number: ADD-50-8506

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Advance Adapters 6-Bolt to 4-Bolt Tailshaft Adapters 50-0405E

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 ( 15 )

Estimated Ship Date: Today

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Reid Racing Powerglide Tailshaft Housings PGH1R

Tailshaft Housing, Aluminum, Roller Bearing, GM, Powerglide, Each

Part Number: REI-PGH1R

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ATI Tailshaft Housings ATI401935

ROLLER BEARING TAIL SUPERCASE

Part Number: ATI-401935

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Reid Racing Powerglide Tailshaft Housings PGH1B

Tailshaft Housing, Aluminum, GM, Powerglide, Each

Part Number: REI-PGH1B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ATI Tailshaft Housings ATI200031

Tailshaft Housing, Aluminum, GM, Powerglide, Each

Part Number: ATI-200031

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Summit Racing™ Powerglide Tailshaft Housings SUM-700502

Tailshaft Housing, Aluminum, GM, Powerglide, Each

Part Number: SUM-700502

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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ATI Tailshaft Housings ATI401936

Transmission Tailhousing, Includes Roller Bearing, Powerglide Length, TH400, Each

Part Number: ATI-401936

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATI Tailshaft Housings ATI701935

Transmission Tailhousing, Includes Roller Bearing, 4L80E, 4L85E, Each

Part Number: ATI-701935

Not Yet Reviewed

Estimated Ship Date: Today

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TCI StreetFighter Automatic Transmission Packages 211000BP2

Automatic Transmission, StreetFighter, 30-spline Input, Fluid, Torque Converter, Cooler, 4 in. Tailshaft, Chevy, Buick, Olds, Pontiac, TH400, V8, Kit

Part Number: TCI-211000BP2

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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TCI StreetFighter Automatic Transmission Packages 311000BP1

Automatic Transmission, StreetFighter, 30-spline Input, Fluid, Torque Converter, Cooler, 6 in. Tailshaft, Chevy, Buick, Olds, Pontiac,TH350, V8, Kit

Part Number: TCI-311000BP1

Not Yet Reviewed

Estimated Ship Date: Today

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TCI StreetFighter Automatic Transmission Packages 311000BP2

Automatic Transmission, StreetFighter, 30-spline Input, Fluid, Torque Converter, Cooler, 6 in. Tailshaft, Chevy, Buick, Olds, Pontiac, TH350, V8, Kit

Part Number: TCI-311000BP2

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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TCI PRO-X TH400 Aluminum Tailhousings 226405

Tailshaft Housing, Aluminum, GM, TH400, Each

Part Number: TCI-226405

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Lokar Tailmount Automatic Transmission Shifters TMC4CM

Automatic Shifter, Tailshaft Mounted, Detent, 12.000 in. Single Bend Chrome Stick, 3/8-24 in., Brushed Mushroom Knob, C4, Each

Part Number: LOK-TMC4CM

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Motive Gear Manual Transmission Replacement Parts NV3515383

SEAL TAILSHAFT

Part Number: MGR-NV3515383

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

Sonnax Output Shaft Supports 28080K

Support, Output Shaft, Aluminum, Powerglide, Each

Part Number: SOX-28080K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Sonnax Automatic Transmission Bearing and Race Kits SBK-G9

Automatic Transmission Bearing and Races, Bearing Kit, Steel, GM, THM350, THM350C, Kit

Part Number: SOX-SBKG9

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Sonnax Automatic Transmission Bearing and Race Kits SBK-G12

BEARING KIT

Part Number: SOX-SBKG12

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Sonnax Automatic Transmission Bearing and Race Kits SBK-G20

BEARING KIT

Part Number: SOX-SBK-G20

Not Yet Reviewed

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