FORD THUNDERBIRD Differential & Rear-End Components

Differential Carrier Cases, Ford 8.8 in., 31 Spline, 0.875 in. X-Pin Hole, Each

Part Number: YGA-20077

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 10, 2026 if ordered today

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

Part Number: MGR-F890457

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

Part Number: SUM-730942

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Carrier Gear Kit, INT FORD 8.8" 28SPL

Part Number: RMG-XL-4013

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Estimated Ship Date: Mar 27, 2026 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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Ring and Pinion Installation Kit, Ford, IRS 8.8 in., Kit

Part Number: FMS-M-4210-A

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Pinion Nut, Steel, 3/4 in.-20 Thread, Each

Part Number: YGA-33154

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

Part Number: RMG-6903121

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Ring and Pinion-Ford 9

Part Number: MGR-F9-543A

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Estimated Ship Date: Mar 30, 2026 if ordered today

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

Part Number: MGR-F9IK

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Ring and Pinion, RP FORD 9" 5.37 EXL

Part Number: RMG-F9537

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Gear, Ring and Pinion, 3.90:1 Ratio, Ford 8.8 in., Set

Part Number: SPZ-36124

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Ring and Pinion Installation Kit, Master, Ford 7.5 in., Rear, Kit

Part Number: MGR-R7-5FRMK

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Spool, Mini, Steel, 31-Spline, 10-Bolt, Ford 9 in., Each

Part Number: MGR-MS9-31

4.75 out of 5 stars ( 4 )

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Differential Clutch Pack, Composite, Ford 8.8, Kit

Part Number: MGR-F8-8CPK

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Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16041

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Estimated Ship Date: Apr 6, 2026 if ordered today

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

Part Number: MGR-R9R306MK

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Yukon Trac Loc case for Ford 9"

Part Number: YGA-20079

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Ring Gear Bolt, Hex, 7/16-20 in. Thread Size, 1.25 in. Long, Steel, Zinc, Each

Part Number: MGR-D8OZ4216A

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Differential Shims, Pinion Shim Type, Steel, Set

Part Number: MGR-1100

3.86 out of 5 stars ( 7 )

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Differential Crush Sleeve; Fits Ford 7.5 in./8.8 in./9 in.

Part Number: RMG-19-0002-1

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Replcement Springs, Powertrax No-Slip, Kit

Part Number: PWT-8001001KAV

4.93 out of 5 stars ( 15 )

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Ring and Pinion Gears, 3.25:1 Ratio, 28-spline, Standard Ring Gear Rotation, Ford 9 in., Set

Part Number: YGA-24367

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Gear, Ring and Pinion, EXCel, 4.33:1 Ratio, Ford, 9 in., Set

Part Number: RMG-F9433

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Estimated Ship Date: Mar 30, 2026 if ordered today

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

Part Number: RMG-4900381

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