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 113

Spicer Drivetrain Products External Spline Yoke Shafts 3-82-71

Yoke, External Spline Yoke Shaft, 16 Spline, Steel, 4.812 in., Spicer 1350, Each

Part Number: SDH-3-82-71

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

ATP Automatic Transmission Control Solenoids RE-71

Automatic Transmission Control Solenoids, Replacement, U151E, Lexus, Toyota, Each

Part Number: ATP-RE-71

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

VEGE Transfer Cases X141-71

Transfer Case, MAGNA 3023LD TRANSFER CAS

Part Number: VRE-X141-71

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Pit Parts Split Sprockets PP71

Junior Dragster & Karting Sprockets, 71 Teeth, Split Sprocket, #35 Chain, Red, Each

Part Number: PXP-PP71

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Pit Parts Solid Sprockets PP21971B

Junior Dragster & Karting Sprockets, Solid Sprocket, 71 Teeth, #219 Chain, Gold, Each

Part Number: PXP-PP21971B

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Silver Sport EasyFit Tremec TKX Transmission Kits EFKMETKX

Silver Sport EasyFit TREMEC TKX Install Kit Mopar 70-74 E-Body, 71-74 B-Body

Part Number: IST-EFKMETKX

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

JR Race Car Jr. Dragster Sprockets 560-2071

Sprocket, Aluminum, Gold, Rear, 71-Tooth, 415 Chain, Jr. Dragster, Each

Part Number: JRC-560-2071

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

USA Standard Gear Axle Shafts for 1971-1980 SCOUT II - ZA W38790

32.91" 30spl INNER LH AXLE D44 SCOUT 71-80

Part Number: SPZ-35114

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

USA Standard Gear Axle Shafts for 1971-1977 BRONCO - ZA W24130

Dana 44 19/30Spline 4340 FRONT AXLE kit, w/ 297X, 71-77 BRONCO.

Part Number: SPZ-35065

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Hybrid Racing Short Shifter Assemblies for 2015-2020 FIT - HYB-SAS-01-71

Shifter, Manual, Short Shifter Assembly, Red, for use on Honda®, Each

Part Number: HYB-HYBSAS0171

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Scott Drake Clutch Linkage Components C8OZ-7B535-A

67-71 Big-Block Clutch Rod Adapter

Part Number: SDK-C8OZ-7B535-A

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

Spicer Select U-Joints 25-260X

Universal Joint Non Greaseable 1310 Series ISR - Chevrolet 1964-72 K10 Pickup , 1968-76 K10 Suburban , 1960-72 K20 Pickup , 1969-71 K20 Suburban

Part Number: SCY-25-260X

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

Yukon Gear & Axle 4340 Chromoly Axles for 1971-1980 SCOUT II - YA W38790

Yukon 4340 Chromoly left hand inner axle for Dana 44, '71-'80 IH Scout, uses 5-760X u/joint

Part Number: YGA-21346

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Nitro Gear and Axle Direct-Fit Axle Shafts AXG14071751

Axle, Direct Fit, GM 8.875 Inch Axle Shaft 12T 71-81 Truck 2wd 30 Spline 31-7/16 Inch 5 Lug Rear

Part Number: NGA-AXG14071751

Not Yet Reviewed

Estimated Ship Date: Today

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USA Standard Gear Axle Shafts for 1971-1980 SCOUT II - ZA W24128

D44 27/30spl FRONT AXLE KIT, w/ Super-Joint, 71-80 SCOUT (ASSM_REQ)

Part Number: SPZ-35134

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Dorman Axle Shafts, Direct Fit 630-140A

Axle Shaft Only, Buick 1979-73, Cadillac 1976, Chevrolet 1979-65, Oldsmobile 1979-73, Pontiac 1979-71

Part Number: RNB-630-140A

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

American Powertrain Hydraulic Throwout Bearing Conversion Kits HMFO40024

1968-71 Ford Fairlane/Torino/Ranchero 5-speed 4-speed and 6-speed Hydraulic Clutch Actuator System for TKX/TKO/T-5/Magnum. ..Kit Includes:..Concentr

Part Number: AWR-HMFO40024

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

American Powertrain Hydraulic Throwout Bearing Conversion Kits HMFO30010G

71-73 Ford Mustang Hydraulic kit for 5-speed 4-speed and 6-speed..Kit Includes:..Concentric Slave Bearing - Pre-bled, Dual line, double width seals..P

Part Number: AWR-HMFO30010G

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today