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

Eaton Detroit Truetrac 31 Spline Differential Ford 8.8 Inch 913A561

Differential, Eaton Detroit Truetrac, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-913A561

4.85 out of 5 stars ( 27 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Summit Racing™ Positraction 31 Spline Differential Carriers Ford 8.8 Inch SUM-730944

Differential Carrier, Positraction, Nodular Iron, Ford 8.8 in., 31 Spline, Each

Part Number: SUM-730944

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Eaton Detroit Truetrac 31 Spline Differential Ford 9 Inch 913A586

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

Part Number: ETN-913A586

4.75 out of 5 stars ( 12 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Eaton Detroit Truetrac 28 Spline Differential Ford 8.8 Inch 912A562

Differential, Eaton Detroit Truetrac, 28-Spline, Ford, 8.8 in., Each

Part Number: ETN-912A562

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Richmond Gear Pro Gear Ring and Pinion Sets 79-0079-1 Ford 9 in. 4.29 Gears

Gear, Ring and Pinion, 4.29:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0079-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Yukon Gear & Axle Dura Grip Positraction Carriers Ford 7.5 Inch YDGF7.5-28

Differential Carrier, Dura Grip Positraction, Traction-Lok, 28-spline, Rear, Ford 7.5 in., Ford, Mercury, Each

Part Number: YGA-26034

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Motive Gear Performance Ring and Pinion Sets F890430 Ford 9 in. 4.30 Gears

Gear, Ring and Pinion, 4.30:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890430

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

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 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

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 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

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 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Motive Gear Performance PRO Gear Ring and Pinion Sets F990370BP Ford 9 in. 3.70 Gears

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

Part Number: MGR-F990370BP

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Motive Gear Performance PRO Gear Ring and Pinion Sets F990429SP Ford 9 in. 4.29 Gears

Ring and Pinion; Pro Gear; Light Weight Ring And Pinion; Ford 9 in.; 4.29 Ratio; 30-7 Teeth; Small Pinion

Part Number: MGR-F990429SP

Not Yet Reviewed

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

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 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

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

Not Yet Reviewed

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Richmond Gear Pro Gear Ring and Pinion Sets 79-0003-1 Ford 9 in. 3.60 Gears

Gear, Pro Ring and Pinion, 3.60:1 Ratio, Ford, 9 in., Set

Part Number: RMG-7900031

Not Yet Reviewed

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Summit Racing™ Positraction 28 Spline Differential Carriers Ford 8.8 Inch SUM-730942

Differential Carrier, Positraction, Nodular Iron, Ford 8.8 in., 28 Spline, Each

Part Number: SUM-730942

Not Yet Reviewed

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Powertrax Lock-Right Lockers Ford 8/9 Inch 1810-LR

Differential, Lock-Right, Locker, 28/31-Spline, Ford, 9 in., Each

Part Number: PWT-1810-LR

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Eaton Posi Performance 31 Spline Differential Ford 8.8 Inch 19588-010

Differential, Posi Performance, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-19588-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 2, 2025 if ordered today

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Estimated Ship Date: Oct 2, 2025 if ordered today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0019-1 Ford 9 in. 5.83 Gears

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

Part Number: RMG-79-0019-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Yukon Gear & Axle 31 Spline Differential Carriers Ford 8.8 Inch YC F318

Differential Carrier, Limited Slip, Ford 8.8 in., 31 Spline, Each

Part Number: YGA-20069

Not Yet Reviewed

Estimated Ship Date: Monday 9/8/2025

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Estimated Ship Date: Monday 9/8/2025

Yukon Gear & Axle Ring and Pinion Sets YG F9-300 Ford 9 in. 3.00 Gears

Ring & Pinion Gear, 3.00 Ratio, Ford, 9.0 in. Rear, Set

Part Number: YGA-24363

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Powertrax Lock-Right Lockers Ford 8.8 Inch 1820-LR

Differential, Lock-Right, Locker, 28-Spline, Ford, 8.8 in., Each

Part Number: PWT-1820-LR

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Sep 29, 2025 if ordered today

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Estimated Ship Date: Sep 29, 2025 if ordered today

Motive Gear Performance Ring and Pinion Sets F890375 Ford 9 in. 3.75 Gears

Gear, Ring and Pinion, 3.75:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890375

Not Yet Reviewed

Estimated Ship Date: Sep 26, 2025 if ordered today

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Estimated Ship Date: Sep 26, 2025 if ordered today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0005-1 Ford 9 in. 5.43 Gears

Gear, Ring and Pinion, 5.43:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0005-1

Not Yet Reviewed

Estimated Ship Date: Sep 25, 2025 if ordered today

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Estimated Ship Date: Sep 25, 2025 if ordered today

Motive Gear AX Series Lightweight Performance Ring and Pinion Sets F890733AX Ford 9 in. 7.33 Gears

Gear, Ring and Pinion, 7.33:1 Ratio, Ford, 9 in., Daytona Bearing, Set

Part Number: MGR-F890733AX

Not Yet Reviewed

Estimated Ship Date: Sep 26, 2025 if ordered today

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Estimated Ship Date: Sep 26, 2025 if ordered today