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 112

Standard Motor Neutral and Backup Safety Switches NS-54

Switch - Neutral/Backup

Part Number: SMP-NS54

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Standard Motor Neutral and Backup Safety Switches NS-14

Neutral Safety/Backup Light Switch, Column Shift Only, Each

Part Number: SMP-NS14

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Tork Master 2,300-2,500 Stall Torque Converter 20404

Torque Converter, Tork Master, 2,300-2,500 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20404

4.41 out of 5 stars ( 37 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M StarShifters 80675

Automatic Shifter, StarShifter, Chevy, Ford, Lincoln, Mercury, Mopar, Each

Part Number: BMM-80675

4.63 out of 5 stars ( 154 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Tork Master 1,900-2,100 Stall Torque Converter 20400

Torque Converter, Tork Master, 1,900-2,100 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20400

4.32 out of 5 stars ( 77 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Unimatic Shifters 80775

Automatic Shifter, Unimatic, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80775

4.3 out of 5 stars ( 73 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

National Bearing Automatic Transmission Selector Shaft Seals 8792S

Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Motive Gear Universal Joint U-Bolt Kits MGUB1310

U-Bolts, Steel, Natural, AMC, Buick, Cadillac, Checker, Chevrolet, Dodge, Ford, GMC, Lincoln, Mercury, Plymouth, Pair

Part Number: MGR-MGUB1310

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Timken Automatic Transmission Selector Shaft Seals 8792S

Seal, Automatic Transmission Selector Shaft, Each

Part Number: TMK-8792S

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Truck Megashifters 80680

Automatic Shifter, Megashifter, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80680

4.72 out of 5 stars ( 57 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M QuickSilver Shifters 80683

Shifters, Automatic Transmission, Quick Silver, Ratchet Shifter, 12.23 in. Long Chrome Stick, Black/Chrome Plastic Console, GM, Mopar, Ford, Kit

Part Number: BMM-80683

4.52 out of 5 stars ( 99 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Pro Ratchet Shifters 80842

Automatic Shifter, Pro Ratchet, Aluminum Cover, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80842

4.71 out of 5 stars ( 72 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Holeshot 2,900-3,200 Stall Torque Converter 20483

Torque Converter, Holeshot, 2,900-3,200 rpm Stall Range, GM, THM350/THM400, Each

Part Number: BMM-20483

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Sport Shifters 80776

Automatic Shifter, Sport, Chevy, Mopar, Ford, Cable Operated, T-Handle, Each

Part Number: BMM-80776

4.19 out of 5 stars ( 48 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Holeshot 1,800-2,200 Stall Torque Converter 20416

Torque Converter, Holeshot, 1,800-2,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20416

4.39 out of 5 stars ( 18 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Holeshot 2,300-2,500 Stall Torque Converter 20412

Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20412

3.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Nitrous Holeshot 3,500-3,800 Stall Torque Converter 20485

Torque Converter, Nitrous Holeshot, 3,500-3,800 rpm Stall Range, 30-spline, THM350/THM400, Each

Part Number: BMM-20485

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Lokar Hi-Tech Kickdown Kits KD-2400HT

Lokar Hi-Tech Kickdown Kits KD-2400HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD2400HT

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Hurst Quarter Stick Shifters 3160001

Automatic Shifter, Quarter Stick, Chevy, Forward/Reverse Pattern, Powerglide, TH250, TH350, TH375, TH400, Each

Part Number: HUU-3160001

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

RAM Hydraulic Release Bearings 78125HD

Throwout Bearing, Hydraulic, 1.375 in. Retainer Diameter, Lever Style Clutch, universal, Each

Part Number: RAM-78125HD

4.58 out of 5 stars ( 26 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Nitrous Holeshot 3,200-3,500 Stall Torque Converter 20484

Torque Converter, Nitrous Holeshot, 3,200-3,500 rpm Stall, GM, THM350/THM400, Each

Part Number: BMM-20484

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Timken Wheel Bearings SET6

Wheel Bearing, Front, Each

Part Number: TMK-SET6

4.85 out of 5 stars ( 40 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Centerforce Throwout Bearings N1716

Throwout Bearing, Buick, Chevy, GMC, Oldsmobile, Pontiac, L6, V6, V8, Each

Part Number: CTF-N1716

4.83 out of 5 stars ( 46 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

B&M Transmission Brackets and Levers 35498

Transmission Bracket, Steel, Natural, Chevy TH400/TH350/TH250/200-4R/700R4/TH350C, Kit

Part Number: BMM-35498

4.83 out of 5 stars ( 60 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Timken Wheel Bearings SET2

Wheel Bearing, Front Outer, Each

Part Number: TMK-SET2

5.0 out of 5 stars ( 25 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

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