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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.
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 132 Items.
Seal Chevrolet,GMC 91-00
Part Number: FWB-SS3906
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Seal AM General,Chevrolet,GMC 92-02
Part Number: FWB-SS3909
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Seal N/A
Part Number: FWB-SS3902
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set
Part Number: MGR-GM10-390
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.90:1 Ratio, Standard Gear Rotation, GM 8.875 in. Passenger Car, Set
Part Number: YGA-24125
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: YGA-24159
Estimated Ship Date: Today
Estimated Ship Date: Today
USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.90 ratio
Part Number: SPZ-36169
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Ring and Pinion Gear, 3.90:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36215
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Tapered roller bearing race
Part Number: SKF-HM803110
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Shifter, StarShifter, Chevy, Ford, Lincoln, Mercury, Mopar, Each
Part Number: BMM-80675
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Shifter, Unimatic, Chevy, Mopar, Ford, Lincoln, Mercury, Each
Part Number: BMM-80775
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Shifter, Megashifter, Chevy, Mopar, Ford, Lincoln, Mercury, Each
Part Number: BMM-80680
Estimated Ship Date: Today
Estimated Ship Date: Today
Clutch Kit, RST, 1 1/8 in. x 26-Spline, 9.688 in. Diameter Disc, Chevy, Small/Big Block, Kit
Part Number: MCL-6911-07
Estimated Ship Date: Today
Estimated Ship Date: Today
Shifter, Automatic Transmission, Pro Ratchet, 3-, or 4-Speed, Forward or Reverse Pattern, Aluminum Cover, Ford, GM, Lincoln, Mercury, Mopar, Each
Part Number: BMM-80842
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Shifter, Sport, Chevy, Mopar, Ford, Cable Operated, T-Handle, Each
Part Number: BMM-80776
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
Clutch Kit, RXT, 1 1/8 in. x 26-Spline, 9.688 in. Diameter Disc, Chevy, V8, Kit
Part Number: MCL-6921-07
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
clutch spring SPRING- BLU PRIMRY SKIDOO SPRING- BLU PRIMRY SKIDOO
Part Number: ERL-SDPS-1
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: Today
Throwout Bearing, Hydraulic, 1.375 in. Retainer Diameter, Lever Style Clutch, universal, Each
Part Number: RAM-78125HD
Estimated Ship Date: Today
Estimated Ship Date: Today
Axle Seal, Rear Axle Shaft Size-1.399 in., Seal O.D-.2.296, Seal Width-0.460 in., Bidirectional, Each
Part Number: TMK-8660S
Estimated Ship Date: Today
Estimated Ship Date: Today
Bearing, Pinion, 1.312 in. Inside Diameter, Each
Part Number: TMK-M88048
Estimated Ship Date: Today
Estimated Ship Date: Today
