How to Determine the Correct Replacement Wheel Hub for a 1974 Murray Trailer

Question:

I want to buy a new hub. How do I know which to buy for a 1974 murray trailer 1500 lbs load

asked by: Eddie

Expert Reply:

In order to get the correct replacement hub you will need to look at your existing hub for comparison, and will need to determine the following:
Bolt Pattern
Bearing Numbers or Precise Measurements on Spindle
Wheel Stud Diameter

The first thing to do is determine the bolt pattern that you need. I have included a helpful article that explains how to determine the bolt pattern for your reference.

Once the bolt pattern is determined, then you will also need to determine the inner and outer bearing numbers. To get these numbers you will have to disassemble the bearings on the hub. If you are not able to obtain the bearing numbers, you can take a few measurements on the spindle using an accurate measuring device like a pair of dial calipers. I have included a photo that shows where to locate the bearing numbers, or where to take measurements.

The last thing that you need to confirm on your current hub is the wheel stud diameter.

expert reply by: Rachael H