MERCURY GRAND MARQUIS Transmission & Drivetrain - 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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Truck Megashifters 80680

Automatic Shifter, Megashifter, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80680

4.72 out of 5 stars ( 57 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Holeshot 1,900-2,100 Stall Torque Converter 50448

Torque Converter, Holeshot, 1,900-2,000 rpm Stall Range, Ford, C-4, Each

Part Number: BMM-50448

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

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Holeshot 2,300-2,500 Stall Torque Converter 40422

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

Part Number: BMM-40422

4.5 out of 5 stars ( 4 )

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

Hays Twister 3/4 Race 2,400-2,800 Stall Torque Converter 97-2D24Q

Torque Converters, Twister 3/4 Race, 2,400-2,800 rpm Stall Speed Range, 24-spline, 10.00 in. Diameter, Ford C4, Ford, Lincoln, Mercury, Each

Part Number: HAY-97-2D24Q

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Magnum Grip Pro Stick Shifters 81040

Automatic Shifter, Magnum Grip Pro Stick, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-81040

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Motive Gear Ring and Pinion Sets F9-300 Ford 9 in. 3.00 Gears

Gear, Ring and Pinion, 3.00:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F9-300

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Holeshot 2,900-3,300 Stall Torque Converter 40476

Torque Converter, Holeshot, 2,900-3,300 rpm Stall Range, Ford, C-6, Each

Part Number: BMM-40476

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Megashifters 80685

Automatic Shifter, Megashifter, Right Hand Drive Models, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80685

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Motive Gear Performance PRO Gear Ring and Pinion Sets F990429BP Ford 9 in. 4.29 Gears

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

Part Number: MGR-F990429BP

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Moser Engineering US Gear Pro Series Ring and Pinion Gear Sets 07-990429 Ford 9 in. 4.29 Gears

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025

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B&M Holeshot 2,300-2,500 Stall Torque Converter 50416

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Richmond Gear Ring and Pinion Sets 69-0382-1 Ford 8.8 in. 4.88 Gears

Gear, Ring and Pinion, 4.88:1 Ratio, Ford, 8.8 in., Set

Part Number: RMG-6903821

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 Ring and Pinion Sets 69-0312-1 Ford 8.8 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, Ford, 8.8 in., Set

Part Number: RMG-6903121

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

B&M Nitrous Holeshot 3,500-3,800 Stall Torque Converter 40477

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

Part Number: BMM-40477

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

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Richmond Gear Ring and Pinion Sets 69-0068-1 Ford 9 in. 5.14 Gears

Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set

Part Number: RMG-6900681

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

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: Sep 4, 2025 if ordered today

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Estimated Ship Date: Sep 4, 2025 if ordered today