How to Pick Out Brake Assemblies for a Trailer with Idler Hubs

Published 11/06/2017

Question:

I like the 7inch electrical brake system but the bolt pattern does not look like it would fit my bolt pattern. I have a 4 bolt pattern probably a 4x4 size? the trailer I have is a venture year 1999 2500 lbs, I think 10inch would be over kill? but if they have something that fits I will use it. thanks

asked by: John

Helpful Expert Reply:

Do you have idler hubs on your trailer currently? The way to pick out brakes for a trailer that has idler hub and a brake mounting flange is to first find the correct hub drum that fits the spindle and then go with the correct size/rated assemblies for those drums.

To pick out the drums I'd need to know the diameters of the spindle where the bearings ride or the bearing numbers out of the hub as well as the bolt pattern of the hub where the wheel attaches. We can then pick out brake assemblies from there.

I attached a help article below that details how to determine the wheel bolt pattern you have as well as a guide for walking you through the process of adding brakes to a trailer.

expert reply by: Jameson C