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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 22 Items.
Differential, Eaton Detroit Truetrac, 1.370 in. Axle Shaft Diameter, 34-Spline, Ford, 9.75 in., Each
Part Number: ETN-913A477
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Eaton Detroit Truetrac, Limited Slip, 34-Spline, 3.31:1 and Higher Only, Ford 8.8, Each
Part Number: ETN-917A739
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Grip Pro Traction System, 34-Spline, Ford, 9.75 in., Each
Part Number: PWT-GT109734
Estimated Ship Date: Jun 2, 2026 if ordered today
Estimated Ship Date: Jun 2, 2026 if ordered today
Electric locker for '12-'14 Ford F150 (Not SVT Raptor)
Part Number: YGA-32349
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Dura Grip Positraction Carrier, Traction-Loc, Ford 8.8 in. Axle, 34 Spline, Ford, Each
Part Number: YGA-12497
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Trac-Lok Differential Carrier, Ford 8.8 in., 34 Spline, 3:31 and Up Ratio, Each
Part Number: YGA-20162
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Axle Shaft, Direct Fit, Ford 9.75 in., 34 Spline, 6 x 135mm Bolt Pattern, Left Rear, Ford, F-150, Each
Part Number: MGR-MG3057
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Axle Shaft, Direct Fit, Ford 8.8 in., 34 Spline, 6 x 135mm Bolt Pattern, Left Rear, Ford, F-150, Each
Part Number: MGR-MG3055
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier, Limited Slip, Steel, Rear, Ford 9.75 in., Ford, Lincoln, Each
Part Number: YGA-26020
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Grip LS Traction System, 34-Spline, Ford, 9.75 in., Each
Part Number: PWT-LS109734
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
Differential Carrier Gear Kit
Part Number: RMG-XL-4016
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
ELECTRIC LOCKER
Part Number: YGA-32385
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
OPEN CASE CARRIER
Part Number: YGA-20163
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Drive Axle Shaft, Axle Shaft
Part Number: MGR-MG3054
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
