1999-04 Ford Mustang Axle Shaft Kit Rear Driver or Passenger Side Dorman 630-631 - 1AAXS00155

Axle shafts may need replacing for a variety of different reasons. On vehicles that do heavy work or endure other extreme use you can actually break an axle or strip the splines or teeth. More often the bearing wears out and spins on the axle ruining bearing mount surface useless.


  • Fits either LH (Driver Side) or RH (Passenger Side) REAR
  • Replaces dealer part number: XR3Z-4234-BA, XR3Z4234BA
  • Bolt provisions: 5
  • Direct replacement
  • Built to strict quality control standards
  • Includes axle bearing, oil seal, studs, and nuts
  • Does NOT fit Cobra Models
  • Fits models WITHOUT ABS (Anti-Lock Brakes) only

Part Details

  • Front or Rear Location: Rear
  • Side Location: Driver or Passenger Side

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

  • 1999-2004 Ford Mustang Rear Axle Shaft Kit Driver or Passenger Side (excluding Cobra) without ABS Brakes Dorman 630-631

This part replaces:

  • OE # XR3Z 4234BA
  • Hollander 447-02426
  • Dorman 630-631
Only 2 left in stock
Part #: 1AAXS00155

Brand #: 630-631