Performance & Replacement Transmission & Drivetrain Parts

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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.

Showing All Items, Including Not in Stock Items That Match "LS-345"

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Results 1 - 25 of 512

Standard Motor Neutral and Backup Safety Switches for 2004-2006 RAM 1500, 2005-2009 VIPER - LS-345

Neutral Safety and Backup Light Switch, Replacement, Dodge, Each

Part Number: SMP-LS345

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

Summit Racing Equipment® U-Joints SUM-732002

Universal Joint, Spicer 1350 Style, Greasable, Steel, Each

Part Number: SUM-732002

3.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Powertrax Grip LS Traction Systems Chrysler 8.25 Inch LS308229

Differential, Grip LS Traction System, 29-Spline, Chrysler, 8.25 in., Each

Part Number: PWT-LS308229

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Powertrax Grip LS Traction Systems Chrysler 9.25 Inch LS309231

Differential, Grip LS Traction System, 31-Spline, Chrysler, 9.25 in., Each

Part Number: PWT-LS309231

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

VEGE Remanufactured Stock Stall Torque Converter TQC27LS

Torque Converter, Chry 545RFE 03-11 LS Convtr

Part Number: CCV-TQC27LS

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Standard Motor Neutral and Backup Safety Switches LS-297

Neutral Safety and Backup Light Switch, Replacement, International, Each

Part Number: SMP-LS297

Not Yet Reviewed

Estimated Ship Date: Today

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Hooker Blackheart Transmission Adapter Plates BHS565

Transmission Adapter Plates, Steel, Black Painted, T-56 Transmission, Chevy, GMT-400 Platform, Gen III/IV LS Engines, Each

Part Number: HOK-BHS565

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

Sikky Manufacturing Hydraulic Clutch Lines MCK114

Clutch Line, Hydraulic, Stainlless Steel Braided, Remote Bleeder, Green, Hardware, Fittings, LS Swap, TR6060 Transmission, BMW, Kit

Part Number: SKM-MCK114

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

Standard Motor Neutral and Backup Safety Switches LS-285

Neutral Safety and Backup Light Switch, Replacement, Dodge, Each

Part Number: SMP-LS285

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P35

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P35

Transmission 6X GEN3 HEMI PKG W/PADDLE SHFT

Part Number: TCI-271701P35

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P36

Transmission 6X GEN3 HEMI PKG W/OUTLAW SHFT

Part Number: TCI-271701P36

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P34

Transmission 6X GEN3 HEMI TRANS PKG W/BELL

Part Number: TCI-271701P34

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Eaton Detroit Truetrac 30 Spline Differential AAM 11.5 Inch 14-bolt 915A568

Differential, Eaton Detroit Truetrac, 30-Spline, AAM, 11.5 in., 14-Bolt, Each

Part Number: ETN-915A568

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Yukon Gear & Axle Bearings AK 1559

Axle Bearing, 2.530 in. O.D., Each

Part Number: YGA-10001

4.56 out of 5 stars ( 18 )

Estimated Ship Date: Today

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Timken Pinion Bearings M88048

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: TMK-M88048

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Moog Premium U-Joints 369

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-369

4.57 out of 5 stars ( 37 )

Estimated Ship Date: Today

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Timken Pinion Bearing Races M88010

Bearing Race, Differential Pinion, 2.687 in. Outside Diameter, Each

Part Number: TMK-M88010

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Moog Super Strength U-Joints 232

Universal Joint, Super Strength, 1350 Style, Greasable, Steel, Each

Part Number: MOG-232

4.71 out of 5 stars ( 24 )

Estimated Ship Date: Today

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Timken Wheel Bearings SET3

Wheel Bearing, Front Outer, Each

Part Number: TMK-SET3

4.65 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Moog Super Strength U-Joints 280

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-280

4.71 out of 5 stars ( 34 )

Estimated Ship Date: Today

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Yukon Gear & Axle Crush Sleeve Eliminator Kits SK CSGM8.5

Pinion Bearing Spacer, Crush Sleeve Eliminator, Steel, Chrysler 9.25 in., GM 8.5 in., Each

Part Number: YGA-55048

4.85 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Moog Super Strength U-Joints 269

Universal Joint, Super Strength, 1310-CV Style, Solid, Steel, Each

Part Number: MOG-269

4.89 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Timken Wheel Bearings SET5

Wheel Bearing, Each

Part Number: TMK-SET5

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Timken Pinion Bearings M802048

Bearing, Pinion, 1.625 in. Inside Diameter, Each

Part Number: TMK-M802048

4.67 out of 5 stars ( 30 )

Estimated Ship Date: Today

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Moog Super Strength U-Joints 231

Universal Joint, Super Strength, 1350 Style, Solid, Steel, Each

Part Number: MOG-231

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Moog Super Strength U-Joints 270

Universal Joint, Super Strength, 1330 Style, Greasable, Steel, Each

Part Number: MOG-270

4.7 out of 5 stars ( 20 )

Estimated Ship Date: Today

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