1978 FORD THUNDERBIRD Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

USA Standard Gear Spartan Lockers Ford 8/9 Inch SL F9-28-31

Differential Carrier, Spartan Locker, Steel, 28/31-spline, Open Case, Rear, Ford 8/9 in., Each

Part Number: SPZ-17042

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

USA Standard Gear Spartan Locker Replacement Crosspins SL XP-F9-XS

9" FORD SPARTAN LOCKER EXTRA_SHORT X/PIN SHAFT

Part Number: SPZ-17044

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Richmond Gear EXCel Pinion Yokes 96-2320K

Pinion Yoke, Bolt-On, Steel, 1330, 28-Spline, Ford 9 in., Kit

Part Number: RMG-96-2320K

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1003-1

Ring and Pinion Kit

Part Number: RMG-XL-1003-1

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1005-1

Ring and Pinion Kit

Part Number: RMG-XL-1005-1

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1013-1

Ring and Pinion Kit

Part Number: RMG-XL-1013-1

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

Motive Gear Ring Gear Bolts D8OZ4216B

Ring Gear Bolt, Ford 8 in., 9 in., AMC 20, Each

Part Number: MGR-D8OZ4216B

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets F890650 Ford 9 in. 6.50 Gears

Gear, Ring and Pinion, 6.50:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890650

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Yukon Gear & Axle Differential Pinion Yokes YY F900602

Good used Yukon yoke for Ford 9" with 28 spline pinion and a 1330 U/Joint size

Part Number: YGA-41143

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Motive Gear Differential Bearing Kits R9R306MKTP

Ring and Pinion Installation Kit, Ford 9.0 in., Kit

Part Number: MGR-R9R306MKTP

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Master Ring and Pinion Installation Kits R9R325MK

Ring and Pinion Installation Kit, Master Kit, Ford, 9 in., 28-Spline Pinion, Kit

Part Number: MGR-R9R325MK

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R9R325S

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

Part Number: MGR-R9R325S

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Ring and Pinion Gear Installation Kits R9RNPK

Differential Pinion Bearing Kit, Differential Pinion Bearing Kit - Koyo

Part Number: MGR-R9RNPK

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Basic Ring and Pinion Gear Installation Kits R9RPK

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

Part Number: MGR-R9RPK

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Master Ring and Pinion Installation Kits R9RSMKP

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

Part Number: MGR-R9RSMKP

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Motive Gear Master Ring and Pinion Installation Kits R9RSMKTP

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

Part Number: MGR-R9RSMKTP

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear Ring and Pinion Sets 69-0418-L Ford 9 in. 7.00 Gears

Gear, Ring and Pinion, Lightened, 7.00:1 Ratio, Ford, 9 in., Set

Part Number: RMG-69-0418-L

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Sets F9514 Ford 9 in. 5.14 Gears

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

Part Number: RMG-F9514

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Yukon Gear & Axle Third Member Complete Assembly YDAF9-350SVO-28

DROPOUT ASSEMBLY

Part Number: YGA-13209

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2293 Ford 9 in. 3.25 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 3.25 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 31spl T/L POSI (FITS 2.89" DO/ DAYTONA PS)

Part Number: YGA-12561

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2299 Ford 9 in. 3.00 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 3.00 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12567

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2301 Ford 9 in. 3.50 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 3.50 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12570

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2303 Ford 9 in. 3.89 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 3.89 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12575

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2304 Ford 9 in. 4.11 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 4.11 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12577

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2305 Ford 9 in. 4.56 Gears

Ring and Pinion Gears and Installation Kit, 9.0" FORD 4.56 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12582

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today