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.

Showing In Stock Items. Show All 820 Items.

Not Showing Customizable Items. View Customizable Items.

Individual Parts

Part Groups

Results 1 - 25 of 258

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 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear EXCel Ring and Pinion Sets GM85373 GM 8.5/8.6 in. 3.73 Gears

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

Part Number: RMG-GM85373

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear EXCel Ring and Pinion Sets GM85410 GM 8.5/8.6 in. 4.10 Gears

Ring and Pinion Gears, EXCel, 4.10:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: RMG-GM85410

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Motive Gear Performance Ring and Pinion Sets G885410 GM 8.5/8.6 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885410

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear Ring and Pinion Sets 49-0019-1 GM 8.5/8.6 in. 3.23 Gears

Gear, Ring and Pinion, 3.23:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900191

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear Ring and Pinion Sets 49-0034-1 GM 8.5/8.6 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900341

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear EXCel Ring and Pinion Sets GM85308 GM 8.5/8.6 in. 3.08 Gears

Gear, Ring and Pinion, EXCel, 3.08:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85308

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco Automatic Transmission Fluid Pan Magnets 29535617

Filter Magnet, Transmission Pan, GM, Hummer, Isuzu, Saab, Saturn, Each

Part Number: ADO-29535617

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Timken Pinion Bearing Races M86610

Bearing Race, Differential Pinion, 2.531 in. Outside Diameter, Each

Part Number: TMK-M86610

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco Automatic Transmission Shift Shaft Seals 19340257

Automatic Transmission Shift Shaft Seal, Nitrile, Buick, Cadillac, Chevy, Each

Part Number: ADO-8792S

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco Automatic Transmission Fluid Pan Magnets 24239049

Automatic Transmission Pan Magnet, THM125C, THM440, 4T60, ME9, TH400, 4l80, Buick, Cadillac, Chevrolet, Each

Part Number: ADO-24239049

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ATP Automatic Transmission Filter Kits B-161

Transmission Filter, Direct-Fit, Kit

Part Number: ATP-B161

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Dorman Transmission Shifter Linkage Bushings 14057

Transmission Shifter Cable Bushings, Plastic, Tan, Automatic, Buick, Chevy, Ford, GMC, Olds, Pontiac, Saab, Kit

Part Number: RNB-14057

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco GM Genuine Parts Torque Converter Pulse Width Modulation Valves 24227792

Torque Converter Pulse Width Modulation Valve, Buick, Each

Part Number: ADO-24227792

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco GM Genuine Parts Automatic Transmission Clutch Housing Thrust Bearings 24200250

Automatic Bearings and Races, Forward Clutch Roller Inner RaceThrust Bearing, Each

Part Number: ADO-24200250

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Fidanza Billet Aluminum 135-Tooth Flywheel 198281

Fidanza Billet Aluminum 135-Tooth Flywheel 198281

Flywheel, Aluminum, 7.5 lbs., Chevy, Oldsmobile, Pontiac, Saturn, Each

Part Number: FIZ-198281

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Dorman CV Joint Boots 614-003

CV Joint Boot, Rubber, Each

Part Number: RNB-614-003

1.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Richmond Gear Ring and Pinion Sets 69-0167-1 GM 8.5/8.6 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901671

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco GM Genuine Parts Automatic Transmission Wiring Harnesses 24229665

Automatic Transmission Wiring Harnesses, GM Genuine Parts, Chevrolet, Pontiac, Saturn, Each

Part Number: ADO-24229665

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

LuK Clutch Kits 6233181330

Clutch Kit, 1.000 in. - 14-spline, Organic Disc, Pressure Plate, Slave Cylinder, Chevy, Oldsmobile, Pontiac, 2.2L, Kit

Part Number: LUK-04-210

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 21, 2026 if ordered today

...Loading

Estimated Ship Date: May 21, 2026 if ordered today

ACDelco Gold Automatic Transmission Fluid Filters 24227477

Automatic Transmission Filter, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Saturn, Kit

Part Number: ADO-24227477

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Page 1 of 11
Next