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How To Order Replacement Hubs or Hub and Drums

To order the correct replacement hub or hub and drum, the following steps can be used to simplify the ordering process:

  1. Determine the bolt pattern of the hub.
  2. Determine the inner and outer bearing numbers.  Note whether the bearings use grease or oil bath lubrication.
  3. Measure the old hub seal to insure that the I.D. and O.D. dimensions will be the same.
  4. Verify the stud diameter.
  5. If the axle is a brake axle, measure the diameter and width of the brake to determine the brake size.
  6. Look for any casting numbers on front or rear of hub or hub and drum.
  7. On heavier axles, such as the Dexter 8K or 9K axles, you need to determine the hub pilot diameter.  This can be accomplished by measuring the center hole of your wheel.
  8. On 8K and larger axles, determine if it is equipped with ABS, and requires a drum/rotor with ABS exciter ring installed.

Once you have the above information, you are ready to locate your replacement hub or hub and drum.  Locate the bolt pattern desired, then find the inner and outer bearing numbers.

Verify:

  • inner/outer bearing numbers
  • type of bearing lubrication
  • stud size
  • seal size
  • drum size

Confirm brake size and/or hub pilot diameter (if applicable).  Complete assemblies contain the hub or hub and drum, inner and outer bearings, seal, grease cap or oil cap and all necessary wheel nuts.



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