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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 2000 +

Automatic Transmission Rebuild Kits, Forward/Direct Plate, Steel, 0.078 in. Thickness, GM, TH400, Each

Part Number: ATI-405311

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Automatic Transmission Clutch Steels, 0.060 in. Thickness, Thin Direct Steel, GM, Powerglide, Each

Part Number: FTI-F2507D

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STEEL PLATE - DIRECT EACH .060

Part Number: ATI-405612

3.0 out of 5 stars ( 1 )

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Automatic Transmission Clutch Steels, Clutch Steel Plates, 0.050 in. Thickness, GM, Powerglide, Each

Part Number: ATI-205615

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Automatic Transmission Clutch Steels, Thick Reverse Steel, 0.070 in. Thickness, GM, Powerglide, Each

Part Number: FTI-F2509R

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Clutch Steel, 0.085 in. Thick, GM Powerglide, Each

Part Number: FTI-F2509ET

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Automatic Transmission Clutch Steels, Clutch Steel Plates, 0.090 in. Thickness, GM, THM400, Each

Part Number: ATI-405511

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Automatic Transmission Clutch Steels, 0.070 in. Thickness, Thick Direct Steel, GM, Powerglide, Each

Part Number: FTI-F2507T

5.0 out of 5 stars ( 1 )

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Clutch Steels, Intermediate, Steel, 0.100 in. Thick, GM, TH400, Each

Part Number: ATI-405411

5.0 out of 5 stars ( 1 )

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Automatic Transmission Clutch Steels, Steel Plate, High Gear. 0.060 in Thick, Each

Part Number: ATI-205612

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STEELS, KOL, PG REV, .070"THK GM POWERGLIDE, 1962-'73

Part Number: SOX-S019703K

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Automatic Transmission Clutch Steel, 0.076 in. Thickness, GM, THM400, Each

Part Number: FTI-F4047B

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Automatic Transmission Rebuild Kits, Reverse Plate, Steel, 0.100 in. Thick, GM, Powerglide, Each

Part Number: ATI-205814

5.0 out of 5 stars ( 2 )

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Automatic Transmission Clutch Steels, Intermediate, 0.080 in. Thick, GM, TH400, Each

Part Number: FTI-F4049S

5.0 out of 5 stars ( 1 )

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Clutch Steels, Intermediate, Steel, 0.075 in. Thick, GM, TH400, Each

Part Number: ATI-401403

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Automatic Transmission Clutch Steel, 0.090 in. Thickness, GM, TH400, Each

Part Number: FTI-F4049T

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Automatic Transmission Clutch Packs, .070 in. Thick, Set of 6

Part Number: TCI-724200

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Clutch Steels, Intermediate, Steel, 0.060 in. Thick, GM, TH400, Each

Part Number: ATI-405412

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Steel Plates Powerglide .070 Thickness, 12 External Teeth, Each

Part Number: SOX-S019701K

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Steel Plates Powerglide Reverse .070 (6 ea.) Kolene-Treated

Part Number: TCI-724102

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

Part Number: ADO-24212460

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TH350 DIR/FOR STEEL .068 (11)

Part Number: TCI-324002

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Steel Plates Powerglide .060 Thickness, 24 External Teeth, Each

Part Number: SOX-S019715HK150

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TH350 DIR/FOR KOLENE .068 (1)

Part Number: TCI-324003

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

C-4 DIRECT KOLENE STEELS (5)

Part Number: TCI-524100

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today