Availability
1978 FORD THUNDERBIRD Differential & Rear-End Components
Performance Spool (Ford 9" 28 Spline Lightweight Design)
Part Number: SDH-10002219
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
STANDARD AXLE DIFFERENTIAL BEARING AND SEAL KIT - FORD 9 INCH AXLE
Part Number: SDH-10046199
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
STANDARD DIFF BEARING & SEAL KIT; FORD 9" WITH DAYTONA PINION SUPPORT 28 SPLINE
Part Number: SDH-10046203
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
STANDARD AXLE DIFFERENTIAL BEARING & SEAL KIT - FORD 9in.; 35 SPLINE OVERSIZE
Part Number: SDH-10046204
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Performance Spool (Ford 9" 31 Spline)
Part Number: SDH-2022501
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
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 2.89" DO/ DAYTONA PS)
Part Number: YGA-12541
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
DIFFERENTIAL PINION SUPPORT; NODULAR IRON; 5-BOLT STOCK BEARING
Part Number: SDH-10029033
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
DIFFERENTIAL PINION SUPPORT; NODULAR IRON; 5-BOLT DAYTONA BEARING; 28 SPLINE
Part Number: SDH-10029034
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
USA Standard mini spool for Ford 9" with 31 spline axles
Part Number: SPZ-59023
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Differential Ring and Pinion; Ford 9 - 5.43 Ratio
Part Number: SVL-10004633
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Differential Ring and Pinion; Ford 9 - 6.20 Ratio
Part Number: SVL-10004653
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Gear, Ring and Pinion, 6.20:1 Ratio, Ford, 9 in., Set
Part Number: MGR-F890620
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, 6.33:1 Ratio, Ford, 9 in., Daytona Bearing, Set
Part Number: MGR-F890633AX
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set
Part Number: MGR-F890514
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, 6.50:1 Ratio, Ford, 9 in., Set
Part Number: MGR-F890650
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, 6.50:1 Ratio, Ford, 9 in., Daytona Bearing, Set
Part Number: MGR-F890650AX
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, 6.00:1 Ratio, Ford, 9 in., Daytona Bearing, Set
Part Number: MGR-F890600AX
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Differential, Grip Pro Traction System, 31-Spline, Ford, 9 in., Each
Part Number: PWT-GT109031
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Gear, Ring and Pinion, 6.20:1 Ratio, Ford, 9 in., Daytona Bearing, Set
Part Number: MGR-F890620AX
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, EXCel, 5.00:1 Ratio, Ford, 9 in., Set
Part Number: RMG-F9500
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, EXCel, 5.83:1 Ratio, Ford, 9 in., Set
Part Number: RMG-F9583
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Gear, Ring and Pinion, EXCel, 5.29:1 Ratio, Ford, 9 in., Set
Part Number: RMG-F9529
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Ring and Pinion, RP FORD 9" 5.37 EXL
Part Number: RMG-F9537
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
USA standard ring & pinion gear set for Ford 9" in a 6.020 ratio.
Part Number: SPZ-36151
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Ring and Pinion Gears, 4.56:1 Ratio, 28-spline, Standard Rotation, Ford 9 in., Ford, Lincoln, Mercury, Rear, Set
Part Number: SPZ-36141
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster