Trailer Brake Replacement For Hayes 6 Bolt 10k Axle

Updated 10/18/2021 | Published 10/16/2021

Question:

I am looking at possibly having to replace brakes on my trailer. I think I read on a tag they were Kelsey Hayes 10k axles. The drum is 12.25 diameter and the shoes are 3.5 wide. They have a plastic dust cover on the inside and no metal backing plate, they are mounted to axle with the best I can tell is 6 bolts. I am seeing 4 and 7 bolt mounting plates but no 6 bolt. Do I have an odd set up or does something else fit? The axles are mounted with springs on top and magnet and adjustment screw on top also. I thought the magnets went to the bottom. The long shoe is in front and the shorter one at the rear.

asked by: Mike S

Helpful Expert Reply:

Based on your picture and my research it appears that you may have a 6 bolt pattern mounting flange but will only use 5 bolts to attach. With that being said, a 12 1/4" diameter, 3 1/2" wide hydraulic brake assembly replacement would be the Hayes/AL-KO Hydraulic Brake Kit - Duo Servo # K23-524-00-2. This will fit a 16" wheels or larger, up to 17 1/2".

expert reply by: Bryce D