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

USA Standard Gear Axle Shafts, Direct Fit ZA G14071750K

Axle Shafts Direct Fit, 12T 6 LUG 31-7/16"Axle, 70 to 81', 4WD, GM 30spl

Part Number: SPZ-35187

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

Yukon Gear & Axle Ring and Pinion Sets YG D60-430 Dana 60 4.30 Gears

Ring and Pinion Gears, 4.30:1 Ratio, 29-spline, Standard Rotation, Dana 60, Set

Part Number: YGA-24305

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Powertrax Lock-Right Lockers Dana 44 2413-LR

Differential, Lock-Right, Locker, 19-Spline, Dana, 44, Rear, Each

Part Number: PWT-2413-LR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Motive Gear AX Series Lightweight Performance Ring and Pinion Sets F890614AX Ford 9 in. 6.14 Gears

Gear, Ring and Pinion, 6.14:1 Ratio, Ford, 9 in., Daytona Bearing, Set

Part Number: MGR-F890614AX

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Crown Automotive Differential Cover Bolts J0273573

Crown Automotive Differential Cover Bolts J0273573

Differential Cover Bolt, Hex, 5/16-18 in. Thread Size, 0.500 in. Underhead Length, Each

Part Number: CWA-J0273573

Not Yet Reviewed

Estimated Ship Date: Today

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Motive Gear Differential Pinion Shims 1104

Differential Shims, Pinion, Steel, Kit

Part Number: MGR-1104

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Motive Gear Light-Duty Axle Shafts MG1775

Axle, Direct Fit, Rear, 1541 Carbon Steel, 30-Spline, Chevrolet, GMC, Each

Part Number: MGR-MG1775

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

USA Standard Gear Spider Gear Sets ZIKGM7.5-S-26

USA Standard Gear standard spider gear set for GM 7.5", 26 spline

Part Number: SPZ-39023

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Yukon Gear & Axle Ring Gear Bolts YSPBLT-031

Ring Gear Fastener, Hex Head, 11mm x 1.0 Thread, Toyota 7.5, 8, V6, With Factory Locker, Each

Part Number: YGA-33060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Yukon Gear & Axle Axle Assemblies for 1974-1979 J10 - YA W38823

Inner Axle, Dana 44, 16.5 in. Left, 30 spline, 4340 Chromoly, Uses 5-760X U-Joint, Each

Part Number: YGA-21675

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Differential Pinion Nuts YSPPN-022

Pinion Nut, Suzuki, Toyota, Each

Part Number: YGA-33156

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Yukon Gear & Axle Differential Carrier Replacement Parts YSPBF-002

Baffle, Differential Carrier Replacement Part, Each

Part Number: YGA-33001

Not Yet Reviewed

Estimated Ship Date: Today

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Yukon Gear & Axle Pinion Shims SK F9

Pinion Shims, Steel, Kit

Part Number: YGA-55056

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Alloy USA Differential Master Overhaul Kits 352011

Ring and Pinion Gear Installation Kit, Ford 9 in., 28-Spline Pinion, Kit

Part Number: ALY-352011

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Spicer Drivetrain Products Performance Full Spools 2023545

Spool, Performance, Full, Steel, 30-spline, Dana 60, Each

Part Number: SDH-2023545

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

USA Standard Gear Bearing Kits ZBKF9-A

9" FORD BRG & SEAL KIT LM102910, KOYO BRGS

Part Number: SPZ-58043

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Yukon Gear & Axle Axle Drive Flanges YHC50003

Yukon hardcore drive flange kit for Dana 60, 30 spline outer stubs. Yukon engraved caps.

Part Number: YGA-29067

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

USA Standard Gear Master Overhaul Kits ZK D70-HD

USA Standard Master Overhaul kit Dana 70 HD differential

Part Number: SPZ-37023

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Alloy USA Front Axle Shafts 10126

Axle Shaft, Front Outer, 4340 Chromoly, Dana 44, Ford, Each

Part Number: ALY-10126

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Yukon Gear & Axle Crosspins and Shafts YSPXP-006

Crosspin Shaft, Steel, 0.860 in. Diameter, Rear, Chrysler 9.25 in., Each

Part Number: YGA-33311

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Yukon Gear & Axle Full Spools YP FSD60-4-35

Spool, Steel, 35 Spline, Dana 60, 456:1 Ratio, Each

Part Number: YGA-32043

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Crown Automotive Differential Shims J3205532

Differential Shims, Carrier Type, Steel, Rear, AMC Model 20, Jeep, Set

Part Number: CWA-J3205532

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

Motive Gear AX Series Lightweight Performance Ring and Pinion Sets F890683AX Ford 9 in. 6.83 Gears

Gear, Ring and Pinion, 6.83:1 Ratio, Ford, 9 in., Daytona Bearing, Set

Part Number: MGR-F890683AX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Yukon Gear & Axle Pinion Support Fasteners YSPBLT-060

Pinion Support Bolt Ford 8 in. and 9 in. Balck Oxide, Each

Part Number: YGA-33242

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG C9.25-456 Chrysler 9.25 in. 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, Chrysler 9.25 in., Set

Part Number: YGA-24016

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today