MERCURY GRAND MARQUIS Transmission & Drivetrain - Free Shipping on Orders Over $109 at Summit Racing

Richmond Gear Pro Gear Ring and Pinion Sets 79-0045-1 Ford 9 in. 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0045-1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Ring and Pinion Sets SUM-740907 Ford 9 in. 5.14 Gears

4.75 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/4/2025

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Eaton Detroit Lockers Ford 8.8 Inch 187C145A

Differential, Eaton Detroit Locker, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-187C145A

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Richmond Gear Pro Gear Ring and Pinion Sets 79-0007-1 Ford 9 in. 5.67 Gears

Gear, Ring and Pinion, 5.67:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0007-1

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

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 )

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 Ring and Pinion Sets F990486BP Ford 9 in. 4.86 Gears

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025

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B&M Holeshot 2,300-2,500 Stall Torque Converter 40412

Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Ford, C-6, Each

Part Number: BMM-40412

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Yukon Gear & Axle Dura Grip Positraction Carriers Ford 8.8 Inch YDGF8.8-31-1

3.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/4/2025

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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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Richmond Gear Pro Gear Ring and Pinion Sets 79-0021-1 Ford 9 in. 6.00 Gears

Gear, Ring and Pinion, 6.00:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0021-1

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Allstar Performance Ring and Pinion Gear Sets ALL70038 Ford 9 in. 6.00 Gears

5 out of 5 stars ( 1 )

Estimated Ship Date: Aug 12, 2025

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Yukon Gear & Axle Grizzly Lockers Ford 8.8 Inch YGLF8.8-31

Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 31-spline, Rear, Ford 8.8 in., Each

Part Number: YGA-28031

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

RAM Concept 10.5 Dual-Disc Organic Clutch Kits 50-2259

RAM Concept 10.5 Dual-Disc Organic Clutch Kits 50-2259

Clutch Kit, Concept 10.5 Dual-Disc, 1 1/8 in. Input, 26-Spline, Organic, AC, Detomaso, Ford, Lincoln, Mercury, TVR, Sunbeam, Shelby, Omega, Kit

Part Number: RAM-50-2259

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Special Offer

Buy this Clutch Kit and get a FREE RAM Clutch Ball Cap!

Estimated Ship Date: Aug 18, 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: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Yukon Gear & Axle Grizzly Lockers Ford 9 Inch YGLF9-31-LB

Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 31-spline, Rear, Ford 9 in., Each

Part Number: YGA-28033

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

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Estimated Ship Date: Sep 4, 2025 if ordered today

Yukon Gear & Axle Grizzly Lockers Ford 9 Inch YGLF9-28

Grizzly Locker, Ford 9.0 in., 28 Spline, Each

Part Number: YGA-28008

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

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Estimated Ship Date: Sep 4, 2025 if ordered today

Yukon Gear & Axle Grizzly Lockers Ford 9 Inch YGLF9-31

Grizzly Locker, Ford 9.0 in., 31 Spline, Each

Part Number: YGA-28009

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

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Estimated Ship Date: Sep 4, 2025 if ordered today

Motive Gear Third Member Case Only 26306A

Nodular Housing

Part Number: MGR-26306A

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today