1999-04 Ford Mustang Axle Shaft Kit Rear Pair Dorman 630-631 - 1AACS00052

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.


  • Comes as a PAIR
    • Fits both LH (Driver Side) & RH (Passenger Side) REAR
  • Replaces dealer part number: XR3Z-4234-BA, XR3Z4234BA
  • Bolt provisions: 5
  • Direct replacements
  • Built to strict quality control standards
  • Includes axle bearing, oil seal, studs, and nuts
  • Do NOT fit Cobra Models
  • Fit models WITHOUT ABS (Anti-Lock Brakes) only

Part Details

  • Front or Rear Location: Rear
  • Quantity: Pair

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 without ABS Brakes (excluding Cobra) Pair Axle Shaft Kit Rear Dorman 630-631

This part replaces:

  • Dorman 630-631
Only 1 left in stock
Part #: 1AACS00052

Brand #: 630-631