MERCURY COMET Differential & Rear-End Components

Differential, Eaton Detroit Truetrac, 31-Spline, Ford 9 in., Each

Part Number: ETN-913A586

4.75 out of 5 stars ( 12 )

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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 )

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

Part Number: RMG-79-0066-1

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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 )

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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 )

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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, 3.25:1 Ratio, Ford, 8 in., Set

Part Number: MGR-F880325

4.2 out of 5 stars ( 5 )

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Differential, No-Slip Traction System, 28-Spline, Ford, 8 in., Each

Part Number: PWT-92-0680-2800

5.0 out of 5 stars ( 3 )

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Dura Grip Positraction Carrier, Traction-Loc, Ford 8 in., 28 Spline,. Aggressive Engagement, Each

Part Number: YGA-26001

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Dura Grip Positraction Carrier, Traction-Loc, Ford 8 in., 28 Spline, Smooth Engagement, Each

Part Number: YGA-26002

2.0 out of 5 stars ( 1 )

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Gear, Ring and Pinion, 3.55:1 Ratio, 1.188 in. Pinion, 25 Spline, 8.000 in. Ring Gear, Ford 8 in., Set

Part Number: YGA-24092

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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

Part Number: PWT-LS109031

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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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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: Feb 5, 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: Feb 5, 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: Feb 13, 2026 if ordered today

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Gear, Ring and Pinion, 3.75:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890375

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Estimated Ship Date: Feb 5, 2026 if ordered today

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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: Feb 5, 2026 if ordered 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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Yukon Trac-Loc for Ford 8" wtih 31 spline axles. Street Design

Part Number: YGA-26004

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Differential Carrier Rebuild with Spider Gears, 8 in. and 9 in. Ford, 28 Spline, Complete Trac-Loc Internals and Clutches, Kit

Part Number: YGA-16024

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Differential Carrier Rebuild Kit, Traction-Lok, Clutch Pack, Clutch Shims, Roll Pin, Rear, Ford 9 in., Kit

Part Number: YGA-16027

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Gear, Ring and Pinion, 7.33:1 Ratio, Ford, 9 in., Daytona Bearing, Set

Part Number: MGR-F890733AX

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Estimated Ship Date: Feb 5, 2026 if ordered today

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Ring & Pinion Gear, 3.80 Ratio, Ford, 8.0 in., Set

Part Number: YGA-24093

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Estimated Ship Date: Feb 17, 2026 if ordered today

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High performance Yukon Ring & Pinion gear set for Ford 8" in a 3.25 ratio

Part Number: YGA-24344

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