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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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.

Individual Parts

Results 1 - 25 of 65

Transfer Case Adapter, Atlas, Aluminum, Natural, 1.250 in. Length, Kit

Part Number: ADD-AS-6401

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Transfer Case Adapter, Aluminum, Natural, GM TH350, Atlas, Kit

Part Number: ADD-AS-6800

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Transfer Case Adapter, Aluminum, Natural, GM 4L60, 4L60E, 700R4, Borg Warner 1339, Kit

Part Number: ADD-50-2501

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Transfer Case Components, Atlas Transfer Case Spacers, Housing Spacer Type, 3/4 in. Thick, Each

Part Number: ADD-AS-8603

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Transfer Case Shifter, Atlas Twin Stick Cable Shifter, Kit

Part Number: ADD-303009

Not Yet Reviewed

Estimated Ship Date: Today

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Transfer Case Adapter, Atlas, Aluminum, Natural, GM, 6L80, 6L90, Kit

Part Number: ADD-50-9600

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Adapter, Atlas, Aluminum, Natural, 4.250 in. Length, Kit

Part Number: ADD-AS-6400

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Shifter, Atlas Twin Stick Cable Shifter, Kit

Part Number: ADD-303009A

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Rebuild Kits, ATLAS 2 Speed, Rebuild, Sold as a Kit

Part Number: ADD-AB1000

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Shifters, Transfer Case, Jeep, Kit

Part Number: ADD-303020A

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Seals, Yoke Seal Type, Atlas, Each

Part Number: ADD-300473

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Transfer Case Adapter, Ford, 6R80 Transmission, Atlas Transfer Case, Kit

Part Number: ADD-50-3900

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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SHAFT- ATLAS 6 SPLINE INPUT 32T GM

Part Number: ADD-300116

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Yoke, Transfer Case Location, 32-spline, Steel, Atlas, Each

Part Number: ADD-A1350

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Yoke, Transfer Case, 32 Spline, Atlas Flange, 1310/1330/1350 joint, Each

Part Number: ADD-AF1300

Not Yet Reviewed

Estimated Ship Date: Today

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Transfer Case Adapter, GM, Powerglide Transmission, Atlas Transfer Case, Kit

Part Number: ADD-50-9200

Not Yet Reviewed

Estimated Ship Date: Sep 24, 2025 if ordered today

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Estimated Ship Date: Sep 24, 2025 if ordered today

Transfer Case Adapter, GM, Muncie 4-Speed Transmission, Land Cruiser 10-Spline Transfer Case, Kit

Part Number: ADD-50-0300

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Adapter, Chevy, Muncie 4-Speed Transmission, Dana 18/Dana 20 Transfer Case, Kit

Part Number: ADD-50-0100

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

JK ATLAS 4 SPEED/ RUBICRAWLER CABLE SHIFTER

Part Number: ADD-344025

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Components, Transfer Case to Transmission, Studs, Set of 6

Part Number: ADD-302070

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Transfer Case Components, Flange Lockout Nut, 7/8 in, x 20, Single Use, Each

Part Number: ADD-300476

Not Yet Reviewed

Estimated Ship Date: Today

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Transfer Case Adapter, Aluminum, Natural, Kit

Part Number: ADD-50-5915

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Adapter Kit C4 SHORT 300M TO ATLAS T/C KIT

Part Number: ADD-50-2905

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Transfer Case Adapter Kit 4L60E TO ATLAS 4SP SHORTY

Part Number: ADD-50-9305

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

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Estimated Ship Date: Sep 22, 2025 if ordered today

Transfer Case Adapter Kit *ATLAS 2SP. 4L80E SP & RELUCTOR

Part Number: ADD-50-6409

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

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