FORD 6.4L/390 Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Richmond Gear Pro Gear Ring and Pinion Sets 79-0080-1 Ford 9 in. 4.57 Gears

Gear, Ring and Pinion, 4.57:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0080-1

5.0 out of 5 stars ( 1 )

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Eaton Detroit Truetrac 28 Spline Differential Ford 8 Inch 912A616

Differential, Eaton Detroit Truetrac, Limited Slip, 28-Spline, Ford, 8 in., Each

Part Number: ETN-912A616

5.0 out of 5 stars ( 9 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0066-1 Ford 9 in. 4.86 Gears

Gear, Ring and Pinion, 4.86:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0066-1

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0043-1 Ford 9 in. 3.89 Gears

Gear, Ring and Pinion, 3.89:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0043-1

5.0 out of 5 stars ( 2 )

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Eaton Detroit Lockers Ford 9 Inch 187SL17B

Differential, Eaton Detroit Locker, 31-Spline, Ford, 9 in., Each

Part Number: ETN-187SL17B

4.88 out of 5 stars ( 8 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0004-1 Ford 9 in. 3.70 Gears

Gear, Pro Ring and Pinion, 3.70:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0004-1

5.0 out of 5 stars ( 3 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0060-1 Ford 9 in. 4.86 Gears

Gear, Ring and Pinion, 4.86:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0060-1

5.0 out of 5 stars ( 1 )

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Powertrax Lock-Right Lockers Dana 60 2610-LR

Differential, Lock-Right, Locker, 30-Spline, Dana 60, Each

Part Number: PWT-2610-LR

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Motive Gear Ring and Pinion Sets D60-354 Dana 60 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 60, Set

Part Number: MGR-D60-354

5.0 out of 5 stars ( 4 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0017-1 Ford 9 in. 5.14 Gears

Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0017-1

5.0 out of 5 stars ( 3 )

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Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2257 Ford 8 in. 3.25 Gears

Ring and Pinion Gears and Installation Kit, 8.0" FORD 3.25 REAR R&P GEAR/ INSTALL KIT PACKAGE; FITS STD OPEN CARRIER w/ 1.625" BEARING JOURNAL

Part Number: YGA-12511

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Yukon Gear & Axle Grizzly Lockers Ford 8 Inch YGLF8-28

Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 28-spline, Rear, Ford 8 in., Each

Part Number: YGA-28006

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Eaton Detroit Lockers Dana 44 187SL16C

Differential, Eaton Detroit Locker, 30-Spline, Dana 44, Each

Part Number: ETN-187SL16C

5.0 out of 5 stars ( 1 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0054-1 Ford 9 in. 6.50 Gears

Gear, Ring and Pinion, 6.50:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0054-1

5.0 out of 5 stars ( 1 )

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Powertrax Grip LS Traction Systems Ford 8 Inch LS108028

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

Part Number: PWT-LS108028

5.0 out of 5 stars ( 3 )

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Yukon Gear & Axle Dura Grip Positraction Carriers Dana 60/61 YDGD60-3-30

Differential Carrier, Dura Grip Positraction, Clutch-type, 30-spline, Nodular Iron, Dana 60, Dana 61, Each

Part Number: YGA-26037

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Spicer Drivetrain Products Ring and Pinion Gears 2019214 Dana 60 4.88 Gears

Ring and Pinion Gears, Dana 60, 4.88:1 Ratio, 29-spline, Standard Rotation, Dana 60, Chevrolet, Dodge, Ford, GMC, Jeep, Plymouth, Set

Part Number: SDH-2019214

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Alloy USA Chromoly Front Axle Shaft Kits for 1968-1979 F-250 - 12176

Axles, Direct Fit, Front, 4340 Chromoly, 30-Spline, Ford, Pickup, SUV, Kit

Part Number: ALY-12176

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Motive Gear Ten Factory Axle Shafts for 1968-1979 F-250 - MG22176

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Estimated Ship Date: Feb 11, 2026

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Eaton Detroit Lockers Ford 8 Inch 187S13D

Differential, Eaton Detroit Locker, 28-Spline, Ford, 8 in., Each

Part Number: ETN-187S13D

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eaton Detroit Lockers Dana 44 187SL16D

Differential, Eaton Detroit Locker, 30-Spline, Dana 44, Each

Part Number: ETN-187SL16D

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2264 Ford 8 in. 3.80 Gears

Ring and Pinion Gears and Installation Kit, 8.0" FORD 3.80 REAR R&P GEAR/ INSTALL KIT PACKAGE; FITS POSI OR LOCKER w/ 1.781" BEARING JOURNAL

Part Number: YGA-12518

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 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 )

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Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2256 Ford 8 in. 3.00 Gears

Ring and Pinion Gears and Installation Kit, 8.0" FORD 3.00 REAR R&P GEAR/ INSTALL KIT PACKAGE; FITS STD OPEN CARRIER w/ 1.625" BEARING JOURNAL

Part Number: YGA-12510

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Yukon Gear & Axle 32 Spline Differential Carrier Cases Dana 70 YC D706053

Differential Carrier Case, Open, Locker Carrier Style, 32-spline, Steel, Rear, Dana 70, Each

Part Number: YGA-20032

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 60/61 YDGD60-4-30

Differential Carrier, Dura Grip Positraction, Clutch-type, 30-spline, Nodular Iron, Dana 60, Dana 61, Each

Part Number: YGA-26040

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today