What Info Would be Needed to See if Older Trailer Axle Could be Replaced with Newer One

Updated 04/05/2021 | Published 04/01/2021

Question:

I have a old 12foot camper frame made into a utility trailer. The hub assembly is the 4 lug 9.5inch pattern. It has 13inch wheels. What can I do to update.

asked by: Randall L

Expert Reply:

In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. Sometimes older trailers don't have current style hubs that can fit their axles but hopefully yours can. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out.

Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub or use a dial or digital caliper to get exact measurements of the spindle. The measurements needed are the parts of the spindle where the bearings ride.

If you get back to me with that information I will help you pick out the right hub assemblies. Or, you can follow the link I attached that will take you to the page that has all of our replacement hubs.

You would want to first select the bolt pattern that you have, next select the inner bearing you have, followed by selecting your outer bearing, and then all the correct hubs will be listed.

expert reply by: Jameson C