MERCURY GRAND MARQUIS Differential & Rear-End Components

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

Ring & Pinion Gear Set Ford 9" / 3.7 Ratio

Part Number: SVL-2020624

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 6, 2026 if ordered today

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Ring and Pinion Gears, 4.88:1 Ratio, 30-spline, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: SPZ-36127

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Mini Spool, MINI SPOOL 8.8 FORD 31SPL

Part Number: RMG-XL-5116

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Ring and Pinion-Ford 9

Part Number: MGR-F9-583A

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Spider Gear Kit, Posi Differential, Ford 8.8 in., 31 Spline, Kit

Part Number: YGA-16106

4.4 out of 5 stars ( 15 )

Estimated Ship Date: Today

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

Part Number: MGR-R9R325SMK

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Estimated Ship Date: Today

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Ring and Pinion-Ford 9

Part Number: MGR-F9-370A

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Yukon Dura Grip positraction internals for 8.8" Ford with 28 spline axles

Part Number: YGA-16015

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Estimated Ship Date: Today

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Differential, Lock-Right, Locker, 28-Spline, Ford, 7.5 in., Each

Part Number: PWT-1830-LR

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $656.99

Rebate Expires: 12/31/2025

Get $35 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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Axle Shaft, Rear, C-Clip, 1541H Alloy, 28 Spline, Ford 7.5/8.8, Ford, Lincoln, Each

Part Number: YGA-21202

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Installation Kit, Master Overhaul, Ford 9 in., Kit

Part Number: YGA-14053

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Pinion Crush Sleeves, Steel, Ford, 8.8 in., Pair

Part Number: RNB-81056

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Estimated Ship Date: Today

Replcement Springs, Powertrax No-Slip, Kit

Part Number: PWT-8001001KAV

4.93 out of 5 stars ( 14 )

Estimated Ship Date: Today

Differential Carrier Replacement Parts, Side Bearing Screw Adjuster, Ford 9 in., 3.062 in. Bearing, Each

Part Number: YGA-32139

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Estimated Ship Date: Jan 19, 2026 if ordered today

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USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offe

Part Number: SPZ-36309

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 8, 2026 if ordered today

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Differential Ring and Pinion; Ford 7.5 - 4.56 Ratio

Part Number: SVL-10001322

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: RMG-79-0005-1

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Estimated Ship Date: Jan 12, 2026 if ordered today

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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: Feb 10, 2026 if ordered today

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• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $535.99

Rebate Expires: 12/31/2025

Get $35 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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Ring and Pinion Gears, 5.13:1 Ratio, 10-bolt, 28-spline, Standard Gear Rotation, Ford, 9 in., Set

Part Number: SPZ-36145

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, Ford, 7.5 in., Set

Part Number: MGR-F75-373

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Ring and Pinion Gears, 10-bolt, 28-spline, 3.70:1 Ratio, Standard Rotaion, Ford 9 in., Set

Part Number: MGR-F9-370

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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8.8" Ford bearing & seal kit.

Part Number: SPZ-58007

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Estimated Ship Date: Jan 9, 2026 if ordered today

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9" FORD BRG & SEAL KIT LM102910, KOYO BRGS

Part Number: SPZ-58043

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Estimated Ship Date: Jan 9, 2026 if ordered today

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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: Jan 20, 2026 if ordered today

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