1978 Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

USA Standard Gear Spider Gear Sets ZIKF7.5-S-28

USA Standard Gear standard spider gear set for Ford 7.5"

Part Number: SPZ-39014

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1015-1

Ring and Pinion Installation Kit, Ford 8 in., Kit

Part Number: RMG-XL-1015-1

Not Yet Reviewed

Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Motive Gear Open Differential Internal Kits C8.25BI

Spider Gear Kits, Open Differential, Chrysler 8.25 in., 27 Spline, Kit

Part Number: MGR-C825BI

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Master Overhaul Kits YK C8.25-B

Ring and Pinion Gear Installation Kit, Master Overhaul, 27 Spline, Chrysler 8.25 in., Kit

Part Number: YGA-14005

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Crown Automotive Direct-Fit Axle Shaft Assemblies for 1976-1979 CJ5, CJ7 - 8127081K

Axle Shaft Assembly, Rear Passenger Side, Bolt-in, 29-spline Inner, Steel, AMC Model 20, Jeep, Each

Part Number: CWA-8127081K

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spider Gear Kits YPKGM14T-S-30

Spider Gear Kit, Open Differential, GM 10.5 in., 30 Spline, Kit

Part Number: YGA-16044

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Yukon Gear & Axle Differential Pinion Yokes YY D60-1310-29S

Yokes, 29 Spline, Outside Snap Ring Design, 3.219 in. Snap Ring Span, 1.062 in. Cap Diameter, Dana 44/60/70, Each

Part Number: YGA-41022

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Spline Differential Carriers Ford 9 Inch YC F900500

Differential Carrier, Steel, Open, Rear, Ford 9 in., Each

Part Number: YGA-20078

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

McLeod Pressure Plates 360820

Pressure Plate, Diaphragm-Style, 12 in. Disc Diameter, Chevy, Chrysler, Dodge, Plymouth, Each

Part Number: MCL-360820

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

OMIX-ADA 168-Tooth Flywheel 16912.1

Flywheel, Nodular Iron, 168-Tooth, Internal Engine Balance, Chevy, Each

Part Number: OMX-1691210

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

USA Standard Gear Master Overhaul Kits ZK F9-B

USA Standard Master Overhaul kit for the Ford 9" LM501310 differential

Part Number: SPZ-37035

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Richmond Gear EXCel Spline Differential Carrier Cases GM 10.5 Inch (14-bolt) XL-5030

Differential Carrier

Part Number: RMG-XL-5030

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Centerforce Dual Friction Clutch Discs DF281026

Clutch Disc, Dual Friction, 26-spline, 10 in. Disc Diameter, Ford, Each

Part Number: CTF-DF281026

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

Yukon Gear & Axle 10 Bolt Dana 60 Differential Cover YP C5-D60-REV

Differential Cover, 10-bolt, Steel, Natural, Dana 60, Front Reverse Rotation Differentials Only, Each

Part Number: YGA-32320

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Bearing Kits BK F9-HDA

Yukon Bearing install kit for Ford Daytona 9" differential, LM102910 bearings

Part Number: YGA-11047

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

USA Standard Gear Axle Shafts for 1975-1979 F-250 - ZA W38813

4340 Chromoly Axle, '75-'79 Ford F250, LH inner, 30spl, uses 5-760X u/joint

Part Number: SPZ-35076

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Yukon Gear & Axle Differential Pinion Yokes YY F880622

Yoke, Differential Location, 30-spline, Forged Steel, Spicer 1350 U-joint Style, Rear, Ford 8.8 in., Each

Part Number: YGA-41051

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Motive Gear Differential Bearing Kits RA310RAT

Ring and Pinion Bearing Kit; Bearing Kit; Auburn Ford 8 in.; Incl. F/R Pinion-Carrier-Pilot Bearings/Pinion Ge

Part Number: MGR-RA310RAT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

URO Parts - Throwout Bearings for 1972-1986 911 - 91511608280

Clutch Release Bearing

Part Number: URO-019322

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Centerforce I Pressure Plates CF261015

Pressure Plate, Centerforce I, Diaphragm-Style, 12 in. Disc Diameter, Each

Part Number: CTF-CF261015

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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ATP Automatic Transmission Master Repair Kits TMS-14

Automatic Transmission Master Repair Kit, AMC, Chrysler, Jeep, Jenen, Torque-Comand, Torqueflite, A727, 36RH, 37RH, Kit

Part Number: ATP-TMS14

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Yukon Gear & Axle Pinion Installation Kits PK F9-A

Yukon Pinion install kit for Ford 9" differential

Part Number: YGA-13042

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKD60-S-35

USA Standard Gear replacement spider gear set for Dana 60, 35 spline

Part Number: SPZ-39009

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Motive Gear Mini Spools MSD44-30

Spool, Mini, Steel, 30-Spline, 10-Bolt, Dana 44, Each

Part Number: MGR-MSD44-30

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

SVL Drivetrain Spider Gear Kits 10020477

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today