MERCURY GRAND MARQUIS Differential & Rear-End Components

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

Part Number: YGA-28033

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential, Grip Pro Traction System, 31-Spline, Ford, 8.8 in., Each

Part Number: PWT-GT108831

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Estimated Ship Date: Today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $841.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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USA Standard Gear standard spider gear set for Ford 9", 31 spline, 4-pinion design

Part Number: SPZ-39018

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Estimated Ship Date: Dec 15, 2025 if ordered today

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

Part Number: RMG-F9486

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Estimated Ship Date: Dec 16, 2025 if ordered today

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Ring and Pinion Installation Kit, Master, Ford 9 in., Rear, Kit

Part Number: MGR-R9R306MK

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Estimated Ship Date: Dec 17, 2025 if ordered today

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USA Standard Master Overhaul kit for the Ford 9" LM501310 differential

Part Number: SPZ-37035

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Differential Carrier, Posi Performance, Limited Slip, 28-Spline, Clutch Type, for 10-Bolt Cover, Ford, 8.8 in., Steel, Natural Finish, Each

Part Number: ETN-19605-010

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Axle Shaft, Rear, C-Clip, 1541H Alloy, 28 Spline, 34.375 in. Length, Ford 8.8 in., Ford/Lincoln/Mercury, Each

Part Number: YGA-21507

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Gear, Ring and Pinion, EXCel, 4.33:1 Ratio, Ford, 9 in., Set

Part Number: RMG-F9433

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Estimated Ship Date: Dec 16, 2025 if ordered today

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Main Cap Stud kit for Ford 7.5", 8.8", 9", 10.25", Dana 44, 60, and 70.

Part Number: YGA-32272

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, Ford 9 in., Rear, Kit

Part Number: MGR-R9R306S

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Estimated Ship Date: Dec 17, 2025 if ordered today

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Differential, No-Slip Traction System, 31-Spline, Ford, 8.8 in., Each

Part Number: PWT-92-0688-3108

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Estimated Ship Date: Today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $617.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Nodular Housing

Part Number: MGR-26306

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Estimated Ship Date: Dec 17, 2025 if ordered today

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Differential Cover, 10-bolt, Steel, Chrome, Ford 7.5 in., Each

Part Number: YGA-32008

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: MGR-F890614AX

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Estimated Ship Date: Dec 17, 2025 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.8 FORD 3.08 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12556

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Crosspin Shaft, Steel, 0.750 in. Diameter, Each

Part Number: YGA-33332

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Estimated Ship Date: Today

Trac-Loc Spring, Differential Carrier Replacement Parts, Ford 8.8 in., Each

Part Number: YGA-33516

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 26, 2025 if ordered today

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Gear, Ring and Pinion, 3.08:1 Ratio, Ford, 7.5 in., Set

Part Number: MGR-F75-308

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Dec 17, 2025 if ordered today

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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: Dec 17, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, Ford 9 in., Rear, Kit

Part Number: MGR-R9R

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Estimated Ship Date: Dec 17, 2025 if ordered today

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Pinion Shims, Steel, Kit

Part Number: YGA-55056

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Pinion Installation Kit, 30 Spline, Ford 8.8 in., Kit

Part Number: YGA-13041

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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

Part Number: MGR-F890600

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Estimated Ship Date: Dec 16, 2025 if ordered today

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Ring and Pinion Installation Kit, Ford, 7.5 in., Kit

Part Number: RMG-83-1045-B

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Estimated Ship Date: Dec 16, 2025 if ordered today

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