Replacing Elec brakes

Jethroish wrote:
Could not find anything on this here.
I have a horse trailer with dual 7000# axles. I suspect the brake magnets have weakened. Visually they appear good, but with the brake controller set at the highest setting, only one wheel will lock up on the gravel driveway. Trailer is about 8000# empty. I have adjusted the brake shoes out and they lock up with the trailer off ground.
I know things wear out and eventually need replacing.

Anyone here ever have a similar experience? Did you change out the brakes with a full assembly that included new magnet?

The brakes on the trailer are original (2015 model). Rough guess is the trailer has been towed approximately 60,000 miles in 6 years.

Yes, the magnets are a wear item, the ones on my trailer have 4 holes in them that function as wear indicators, less metal to magnetize equals less gripping power on the drum face to pull in the shoes.

I change out the entire assembly only thing not replaced if you piece meal it is the backing plates.