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

Rugged Ridge Manual Locking Hubs 15001.02

Locking Hubs, Manual, Cast Aluminum, International, Jeep, Pair

Part Number: RGG-1500102

4.0 out of 5 stars ( 2 )

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

Spicer Drivetrain Products 35 Spline Differential Carriers Dana 60 707097-4X

Differential Carriers, Dana 60, Clutch-type, 10-bolt, 35-spline, Ductile Iron, Fits 4.56 and Numerically Higher Gear Ratios, Rear, Dana 60, Ford, Kit

Part Number: SDH-707097-4X

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

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1056-1

Ring and Pinion Installation Kit, Complete, Dana 30, Front, Kit

Part Number: RMG-XL-1056-1

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 Master Overhaul Kits ZK F9-A-SPC

USA Standard Master Overhaul kit for the Ford 9" LM102910 differential, w/ solid spacer

Part Number: SPZ-37034

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

Spicer Drivetrain Products Ring and Pinion Gear with Installation Kits 706503-3X Dana 30 3.73 Gears

Ring and Pinion Complete Kits, 3.73:1 Ratio, 26-spline, Standard Rotation, Dana 30, American Motors, Ford, Jeep, Volvo, Kit

Part Number: SDH-706503-3X

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Motive Gear Ring and Pinion Sets D60-538 Dana 60 5.38 Gears

Gear, Ring and Pinion, 5.38:1 Ratio, Dana 60, Set

Part Number: MGR-D60-538

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

SVL Drivetrain Products Ring and Pinion Gears 10006350

Differential Ring and Pinion; Chrysler 9.25 - Dual Drilled 3.55 Ratio

Part Number: SVL-10006350

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

Powertrax Replacement Active Spacers 624004SDG2

Spacer, Replacement, Active Spacer, Each

Part Number: PWT-624004SDG2

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Yukon Gear & Axle Minimum Install Kits MK GM8.5OLDS-28

Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 8.5 in. O Axle, Kit

Part Number: YGA-12057

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 Zip Lockers Dana 30/Super 30 YZLD30-4-27

Zip Locker, Air Locker, Dana 30/Super 30, 27 Spline, 3.73 Up Ratio, Each

Part Number: YGA-34016

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 Bearing Kits BK GM8.5

Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-11067

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 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: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets F890583 Ford 9 in. 5.83 Gears

Gear, Ring and Pinion, 5.83:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890583

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Yukon Gear & Axle Master Overhaul Kits YK GM7.5-A

Installation Kit, Master Overhaul, GM 7.5 in., Kit

Part Number: YGA-14076

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201028

Differential, Grip Pro Traction System, 28-Spline, GM 8.5 in., Each

Part Number: PWT-GT201028

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R30RT

Ring and Pinion Installation Kit, Basic, Dana 30, Front, Kit

Part Number: MGR-R30RT

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Crown Automotive Pinion Yoke Washers J4004913

Crown Automotive Pinion Yoke Washers J4004913

Pinion Nut Washer, Dana, Jeep, Each

Part Number: CWA-J4004913

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Yukon Gear & Axle Differential Carriers YDGGM12T-4-33-1

DIFFERENTIAL CARRIER

Part Number: YGA-11241

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Yukon Gear & Axle Ring Gear Bolts YSPBLT-016

Ring Gear Bolt, Hex Head, 3/8-24 in. Thread Size, Steel, Natural, GM 8.2 in., Each

Part Number: YGA-33046

2.0 out of 5 stars ( 2 )

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Richmond Gear Spool Bearings 29-0005-1

Carrier Bearings, GM 12 Bolt

Part Number: RMG-29-0005-1

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

Yukon Gear & Axle 1541H Alloy Axles YA C3723824

Yukon 1541H alloy 5 lug rear axle for '79 and older Chrysler 9.25" 2WD

Part Number: YGA-21016

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Grip Pro Traction Systems Ford 8 Inch GT108028

Differential, Grip Pro Traction System, 28-Spline, Ford, 8 in., Each

Part Number: PWT-GT108028

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: 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: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle Minimum Install Kits MK GM8.5

Ring and Pinion Gear Installation Kit, Minimum Installation Kit, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-12055

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Yukon Gear & Axle Bearing Kits BK C9.25-R

Ring and Pinion Gear Installation Kit, Bearing Overhall, 29 Spline, Chrysler 9.25 in., Kit

Part Number: YGA-11011

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