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 986

Scott Drake Clutch Linkage Brackets C5ZZ-7A531-LM

Pivot Mount Bracket, Ford, Each

Part Number: SDK-C5ZZ7A531LM

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Today

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SKF Bearings - Universal Bearings for 1971-1973 411, 1973-1974 412 - LM78349

Tapered roller bearing

Part Number: SKF-LM78349

Not Yet Reviewed

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Centerforce LMC Clutch Kits LM735552

Clutch Kit, Carbon Composite, 1 1/8 in. Diameter Shaft, 10-Spline, 11 in. Diameter Disc, GM, Kit

Part Number: CTF-LM735552

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

SKF Bearings Tapered Roller Bearing Races LM72810

Tapered roller bearing race

Part Number: SKF-LM72810

Not Yet Reviewed

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Eaton Detroit Truetrac 30 Spline Differential GM 8.5/8.6 Inch 913A481

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 & up, Each

Part Number: ETN-913A481

4.85 out of 5 stars ( 136 )

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Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5/8.6 Inch YDGGM8.5-3-30-1

Dura Grip Positraction Carrier, Traction-Loc, GM 8.5/8.6 in., 30 Spline, 2.73 Up Ratio, Each

Part Number: YGA-26016

4.25 out of 5 stars ( 36 )

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FTI Performance SB Series 3,200 Stall Torque Converter SB3200LS

Torque Converter, SB Series, 11.0 in. Diameter, 3,200 rpm Flash Stall, 4L60E, 4L65E, Lockup, LS Bolt Pattern, Each

Part Number: FTI-SB3200LS

4.0 out of 5 stars ( 20 )

Estimated Ship Date: Today

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FTI Performance SB Series 3,000 Stall Torque Converter SB3000LS

Torque Converter, SB Series, 11.0 in. Diameter, 3,000 rpm Flash Stall, 4L60E, 4L65E, Lockup, Each

Part Number: FTI-SB3000LS

4.45 out of 5 stars ( 11 )

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B&M Tork Master 1,900-2,100 Stall Torque Converter 70420

Torque Converter, Tork Master, 1,900-2,000 rpm Stall Range, Chevy, 4L60, 4L60E,700R4, Each

Part Number: BMM-70420

4.56 out of 5 stars ( 16 )

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FTI Performance SRL Series Billet Lockup 2,800-3,000 Stall Torque Converter SRLS43082

GM TORQUE CONVERTER, 4L80E, 4L85E, LS MOTOR 2800-3000 STALL

Part Number: FTI-SRLS43082

1.0 out of 5 stars ( 1 )

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FTI Performance SB Series 2,800 Stall Torque Converter SB2800LS

Torque Converter, SB Series, 11.0 in. Diameter, 2,800 rpm Flash Stall, 4L60E, 4L65E, 4L70E, Lockup, Each

Part Number: FTI-SB2800LS

3.88 out of 5 stars ( 8 )

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McLeod Steel 168-Tooth Flywheel 460530

Flywheel, 168-Tooth, Internal Engine Balance, BandB/Diaphragm, 1-Piece Rear Main, 14.096 in. Diameter, for 11 in./12 in. Disc, Steel, Chevy, LS, Each

Part Number: MCL-460530

4.38 out of 5 stars ( 13 )

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Eaton Detroit Truetrac 30 Spline Differential GM 10.5 Inch (14-bolt) 915A545

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.10 and Lower Ratios, Each

Part Number: ETN-915A545

4.62 out of 5 stars ( 13 )

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FTI Performance SRL Series Billet Lockup 3,200 Stall Torque Converter SRLS40082

Torque Converter, SRL Series Billet Lockup Torque Converter, 9.50 in., Furnace Brazed, Balanced, Chevy, 4L80E, Each

Part Number: FTI-SRLS40082

5.0 out of 5 stars ( 1 )

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Eaton Posi Performance 30 Spline Differential GM 8.5/8.6 Inch 19559-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 8.5 in., Truck, 3 Series, Each

Part Number: ETN-19559-010

4.55 out of 5 stars ( 11 )

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Motive Gear Ring and Pinion Sets GM10-411A GM 8.5/8.6 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-411A

4.71 out of 5 stars ( 7 )

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Motive Gear Ring and Pinion Sets GM10-373 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73 Ratio, GM, 8.5 in/8.6 in., Set

Part Number: MGR-GM10-373

4.74 out of 5 stars ( 19 )

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FTI Performance SB Series 2,600 Stall Torque Converter SB2600LS

Torque Converter, SB Series, 11.0 in. Diameter, 2,600 rpm Flash Stall, 4L60E, 4L65E, Lockup, Each

Part Number: FTI-SB2600LS

5.0 out of 5 stars ( 4 )

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Eaton Detroit Truetrac 33 Spline Differential GM 9.5 Inch 914A538

Differential, Eaton Detroit Truetrac, 33-Spline, GM, 14-Bolt, 9.5 in., Each

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

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FTI Performance SRL Series Billet Lockup 3,600 Stall Torque Converter SRLS40086

GM TORQUE CONVERTER, 4L80E, 4L85E, LS MOTOR,3600 STALL

Part Number: FTI-SRLS40086

3.67 out of 5 stars ( 3 )

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B&M Holeshot 2,300-2,500 Stall Torque Converter 70419

Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Chevy, 4L60E/700R4, Each

Part Number: BMM-70419

4.67 out of 5 stars ( 3 )

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B&M Hammer Shifters 80885

Automatic Shifter, Hammer Shifter, Chevy, Mopar, Ford, Each

Part Number: BMM-80885

4.43 out of 5 stars ( 63 )

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Richmond Gear Ring and Pinion Sets 49-0041-1 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900411

4.47 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Mr. Gasket Automatic Transmission Oil Pans 9797BMRG

Transmission Pan, Stock, Aluminum, EDP Coated Black, GM 700R4, 4L60, 4L60E, Each

Part Number: MRG-9797BMRG

3.93 out of 5 stars ( 14 )

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FTI Performance SB Series 3,200 Stall Torque Converter ESB3200LS

Torque Converter, ESB Series, 11 in. Diameter, 3,200 rpm Flash Stall, 4L60E, 4L65E, 4L70E, Each

Part Number: FTI-ESB3200LS

5.0 out of 5 stars ( 1 )

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