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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.
Roller Assemblies, Polar Clutch Replacement Components, Set of 3
Part Number: HSD-CP-098
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Axle Assembly, Tru-Spin, Jr. Dragster Type, Rear, Billet Aluminum, Kit
Part Number: HSD-R-055
Not Yet Reviewed
Clutch Assembly, Polar Vortex, Standard Ratio, Jr. Dragster, Kit
Part Number: HSD-CP-105
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Secondary Spring, Polar Clutch Replacement Component, High-tension, Each
Part Number: HSD-CP-076R
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Key, Polar Clutch Replacement Component, 0.186 in. Square Clutch Key, Each
Part Number: HSD-CP-101
Not Yet Reviewed
Estimated Ship Date: Mar 26, 2026 if ordered today
Estimated Ship Date: Mar 26, 2026 if ordered today
Clutch Assembly, Polar Vortex, for Jr. Dragster Secondary Drive Only, Each
Part Number: HSD-CP-105S
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Ramps, Polar Clutch Replacement Components, Set of 3
Part Number: HSD-CP092-152622
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Primary Post, Polar Clutch Replacement Component, Fixed Post, Each
Part Number: HSD-CP-100
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Ramps, Polar Clutch Replacement Components, Set of 3
Part Number: HSD-CP092-152822
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Sprocket, Rear, 74-tooth, Steel, Natural, 415 Chain Size, Each
Part Number: HSD-R-523-415-74
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Retainer, Jackshaft Component, Each
Part Number: HSD-M-042R
Not Yet Reviewed
Estimated Ship Date: Mar 26, 2026 if ordered today
Estimated Ship Date: Mar 26, 2026 if ordered today
Chain Guard, 2-Piece, Aluminum, Natural, Each
Part Number: HSD-G-062-08
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Axle Retainer Plates, Bearing Cassette, Junior Racing, Aluminum, Natural, Each
Part Number: HSD-R-052
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Clutch Assembly, Polar Vortex, for Jr. Dragster Primary Drive Only, Each
Part Number: HSD-CP-105P
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Sprocket, Rear, 71-tooth, Steel, Natural, 415 Chain Size, Each
Part Number: HSD-R-523-415-71
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Sprocket, Rear, Steel, Natural, fits 35 Chain, 80-Tooth, Junior Dragster, Kart, Each
Part Number: HSD-R-523-35-80
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Sprocket, Rear, 66-tooth, Steel, Natural, 415 Chain Size, Each
Part Number: HSD-R-523-415-66
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Primary Spring, Polar Clutch Replacement Component, Black, Each
Part Number: HSD-CP-090B
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Primary Assembly, Polar Clutch Replacement Component, Each
Part Number: HSD-CPP-139P
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Primary Sheave, Polar Clutch Replacement Component, Each
Part Number: HSD-CP-097OD
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Sprocket, Rear, Steel, Natural, fits 35 Chain, Junior Dragster, Kart, Each
Part Number: HSD-R-523-35
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Button/Friction Ring, Polar Clutch Replacement Component, Each
Part Number: HSD-CP-078
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Tower Pin, Polar Clutch Replacement Component, Each
Part Number: HSD-CP-082
Not Yet Reviewed
Estimated Ship Date: Mar 26, 2026 if ordered today
Estimated Ship Date: Mar 26, 2026 if ordered today
Roller Assembly, Polar Clutch Replacement Component, Each
Part Number: HSD-CP-095
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
Sprocket, Front, Steel, Natural, fits 35 Chain, 10-Tooth, Junior Dragster, Kart, Each
Part Number: HSD-R-520-35-10
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
