MERCURY GRAND MARQUIS Transmission & Drivetrain

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

Part Number: RMG-7900031

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Gear, Ring and Pinion, 5.00:1 Ratio, Ford, 9 in., Set

Part Number: RMG-7900781

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Estimated Ship Date: Dec 12, 2025 if ordered today

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Torque Converter, Holeshot, 2,300-2,500 Stall Range, Ford, C-4, Each

Part Number: BMM-50416

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Torque Converter, Twister, 2,800-3,200 rpm Stall, 26-Spline, Ford, C-4, Each

Part Number: HAY-97-2E28Q

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 15, 2025 if ordered today

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Gear, Ring and Pinion, 6.20:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0023-1

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Estimated Ship Date: Dec 15, 2025 if ordered today

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

Part Number: YGA-20069

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Torque Converter, Holeshot, 2,900-3,300 rpm Stall Range, Ford, C-4, 26 Spline, Each

Part Number: BMM-50452

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Gear, Ring and Pinion, 4.30:1 Ratio, Ford, 8.8 in., Set

Part Number: RMG-6903761

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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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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: Today

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Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Ford, C-4, 26 Spline, Each

Part Number: BMM-50451

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 12, 2025 if ordered today

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

Part Number: SUM-730942

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Torque Converters, Twister 3/4 Race, 2,400-2,800 rpm Stall Speed Range, 31-spline, 10.00 in. Diameter, Ford C6, AC, Ford, Lincoln, Mercury, Each

Part Number: HAY-97-2F24Q

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Torque Converters, Twister 3/4 Race, 2,400-2,800 rpm Stall Speed Range, 29-spline, 10.00 in. Diameter, FMX, Bricklin, Ford, Mercury, Each

Part Number: HAY-97-2A24Q

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Estimated Ship Date: Dec 16, 2025 if ordered today

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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: Today

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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: Today

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Differential, Grip LS Traction System, 31-Spline, Ford, 9 in., Each

Part Number: PWT-LS109031

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• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $701.99

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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Differential, No-Slip Traction System, 28-Spline, Ford, 9 in., Each

Part Number: PWT-92-0690-2800

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Estimated Ship Date: Today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $582.99

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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Torque Converter, Twister, 2,800-3,200 rpm Stall, 26-Spline, Ford, C-4, Pan Fill, Each

Part Number: HAY-97-2C28Q

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Ring and Pinion Gears, 5.43:1 Ratio, 28 Pinion Spline Count, Ford 9 in., Set

Part Number: MGR-F990543SP

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Estimated Ship Date: Dec 12, 2025 if ordered today

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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: Dec 26, 2025 if ordered today

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Torque Converters, Twister 3/4 Race, 2,800-3,200 rpm Stall Speed Range, 31-spline, 10.00 in. Diameter, Ford C6, AC, Ford, Lincoln, Mercury, Each

Part Number: HAY-97-2G28Q

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Torque Converter, Nitrous Holeshot, 3,500-3,800 rpm Stall Range, Ford, C-6, Each

Part Number: BMM-40477

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Ring and Pinion Gears, Ford 8.8 in., 3.73:1 Ratio, 30-Spline, Standard Rotation, Installation Kit Included, Kit

Part Number: YGA-10618

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 26, 2025 if ordered today

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