FORD THUNDERBIRD Transmission & Drivetrain

Gear, Ring and Pinion, 4.57:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0080-1

5.0 out of 5 stars ( 1 )

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Clutch Kit, RST, 1 1/16 in. x 10-Spline, 9.688 in. Diameter Disc, Ford, 351C, 390-428, 429-460, Kit

Part Number: MCL-6911-03

5.0 out of 5 stars ( 2 )

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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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Bellhousing, Manual, Steel, Ford, Small Block, Cleveland, 6-Bolt, Each

Part Number: LAK-15200

4.6 out of 5 stars ( 10 )

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Gear, Ring and Pinion, 3.89:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0043-1

5.0 out of 5 stars ( 2 )

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

Part Number: ETN-187SL17B

4.88 out of 5 stars ( 8 )

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Differential, Eaton Detroit Truetrac, 28-Spline, Ford, 8.8 in., Each

Part Number: ETN-912A562

5.0 out of 5 stars ( 5 )

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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, 4.86:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0060-1

5.0 out of 5 stars ( 1 )

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Differential, Posi Performance, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-19588-010

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

Part Number: YGA-20069

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

Part Number: BMM-40412

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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 )

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Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.062 in. - 10-spline, Organic Disc, Pressure Plate, Ford, 4.6L, Kit

Part Number: RAM-50-2200

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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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Clutch Kit, Concept 9.5 Dual Disc, Organic Disc, 1 1/8 in.- 26 Spline Disc, Ford, Kit

Part Number: RAM-45-2259

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Estimated Ship Date: Feb 6, 2026 if ordered today

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Clutch Kit, Concept 10.5 Dual-Disc, 1 1/8 in. Input, 26-Spline, Organic, AC, Detomaso, Ford, Lincoln, Mercury, TVR, Sunbeam, Shelby, Omega, Kit

Part Number: RAM-50-2259

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Estimated Ship Date: Feb 6, 2026 if ordered today

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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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Differential, No-Slip Traction System, 28-Spline, Ford, 8.8 in., Each

Part Number: PWT-92-0688-2807

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Torque Converters, Twister 3/4 Race, 2,800-3,200 rpm Stall Speed Range, 29-spline, 10.00 in. Diameter, FMX/AOD/C3, Bricklin, Ford, Mercury, Each

Part Number: HAY-97-2A28Q

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Installation Kit, Master Overhaul, Ford 8 in. IRS, Kit

Part Number: YGA-14153

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Estimated Ship Date: Feb 17, 2026 if ordered today

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

Part Number: PWT-GT109031

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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PINION SUPPORT, Yukon heavy-duty pinion support for Ford 9", for upside down applications

Part Number: YGA-32358

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Torque Converter, Holeshot, 3,400- 3,800 rpm Stall Range, Ford, C-4, 26 Spline, Each

Part Number: BMM-50454

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Estimated Ship Date: Feb 9, 2026 if ordered today

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