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 2000 +

Mile Marker Supreme Locking Hubs 449S/S

Locking Hubs, Manual, Supreme, Stainless Steel, Polished, Chevy, Dodge, Ford, GMC, Pair

Part Number: MMK-449SS

4.67 out of 5 stars ( 57 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spider Gear Kits YPKD44-S-30

Spider Gear Kit, Open Differential, Dana 44, 30 Spline, Kit

Part Number: YGA-16077

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Spider Gear Kits YPKGM8.6-S-30V2

Spider Gears, Internal Kit, Side Gears, Cross Pin and Bolt, GM 2000 and Newer, Rear, 8.6 in., 30- Spline, Kit

Part Number: YGA-16056

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle 10 Bolt Ford 8.8 Inch Differential Cover YP C5-F8.8-S

Differential Cover, 10-bolt, Steel, Natural, Ford 8.8 in., Each

Part Number: YGA-32328

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spider Gear Kits YPKF7.5-S-28

Spider Gear Kit, Open Differential, Ford 7.5 in., 28 Spline, Kit

Part Number: YGA-16014

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Yukon Gear & Axle 31 Spline Differential Carriers Ford 8.8 Inch YC F3180-S

Differential Carrier, Open, Ford 8.8 in., 31 Spline, Complete w/Spider Gears, Each

Part Number: YGA-20070

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spider Gear Kits YPKD60-S-30

Spider Gear Kit, Open Differential, Dana 60, 30 Spline, Kit

Part Number: YGA-16009

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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USA Standard Gear Spider Gear Sets ZIKGM8.6-S-30V3

Differential Carrier Gear Kit, USA Standard Gear standard spider gear set for '07 & up GM 8.6"

Part Number: SPZ-39036

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spider Gear Kits YPKD30-S-27

Spider Gear Kit, Open Differential, Dana 30/ Dana Super 30, 27 Spline, Kit

Part Number: YGA-16073

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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USA Standard Gear Spider Gear Sets ZIKF7.5-S-28

USA Standard Gear standard spider gear set for Ford 7.5"

Part Number: SPZ-39014

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKC8.25-S-29

USA Standard Gear open spider gear set for Chrysler 8.25", 29 spline

Part Number: SPZ-39003

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKD60-S-35

Spider Gear Kit, Open Differential, Dana 60/61, 35 Spline, Kit

Part Number: YGA-16085

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKF9.75-S-34

USA Standard Gear standard spider gear set for Ford 9.75"

Part Number: SPZ-39019

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM8.6-S-30V2

SIDE GEARS

Part Number: SPZ-39028

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKGM11.5-S-30

Yukon standard open spider gear kit for 11.5" GMwith 30 spline axles

Part Number: YGA-16109

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

Yukon Gear & Axle Spider Gear Kits YPKGM8.5-S-30

Spider Gears, Internal Kit, Front or Rear, Side Gears, Cross Shaft Pin and Bolt, GM, 8.5 in., 30 Spline, Kit

Part Number: YGA-16055

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Spider Gear Kits YPKF8.8-S-28

Spider Gear Kit, Open Differential, Ford 8.8 in., 28 Spline, Kit

Part Number: YGA-16019

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKF10.25-S-35

USA Standard Gear standard spider gear set for Ford 10.25"

Part Number: SPZ-39013

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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URO Parts - Shifter Replacement Parts, Automatic Transmission for 2000-2002 S-TYPE - XR817754PRM

Auto Trans Shifter Repair Kit, Jaguar S-Type 00-02

Part Number: URO-007931

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

USA Standard Gear Spider Gear Sets ZIKD30-S-27

USA Standard Gear open spider gear set for Dana Spicer 30, 27 spline

Part Number: SPZ-39005

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKGM8.6-S-30V3

Spider Gears, Side Gears, Cross Shaft Pin, Thrust Washers, 30 Spline, Open, Rear, GM 8.6 in., Kit

Part Number: YGA-16146

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

USA Standard Gear Spider Gear Sets ZIKD70-S-32

USA Standard Gear Replacement Standard Spider Gear Set for Dana 70, 32 spline

Part Number: SPZ-39010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKT100-S-30

Spider Gears, Thrust Washers, Cross Shaft Pin, 30 Spline, Open, Toyota Tacoma Rear 8 in., Kit

Part Number: YGA-16133

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKD70-S-35

Spider Gear Kit, Open Differential, Dana 70/80, 35 Spline, Kit

Part Number: YGA-16093

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM11.5-S-30

11.5AAM GM & Chrysler (fits All Years) UNIVERSAL standard Open spider gear kit.

Part Number: SPZ-39020

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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