wheel cylinders single piston or dual piston?

[western angler]

My trailer has brakes on all four wheels. The primary brake shoe(front) always wears out much faster than the secondary shoe, and it is the smaller of the two shoes. The brakes have the single piston wheel cylinder which pushes on the primary shoe.

Can these wheel cylinders be replaced with the dual piston wheel cylinder(pushes on both brake shoes) giving better braking and more even brake shoe wear?

Or is there a reason surge brakes use the single piston wheel cylinder?

The master cylinder is the a-60 model. Drums are 10 inches. All that is needed is the wheel cylinders and four of the rods or pins that push on the shoes to convert them.

Thanks in advance...

[Ntimad8rs]

The single piston seems to be the best fit for what is there. The reason that you are getting the uneven wear is probably from the adjustment opposite of the pawl adjustment location is out of whack, making you use more of one shoe than the other. At least that is what I had, before going to disc. Now that may not be your case, since I am not looking at your setup. I do not believe that you can even get a dual piston setup in your rig. The holes for the piston will not line up the same in the drum backing plate, as like the old automobile type setup. The a-60 master is a good system, that should not have any effect on the brake wear, but may in the psi capability of any new pistons you might be looking at. Sorry I could not be more help.

[EasternMarine]

Or is there a reason surge brakes use the single piston wheel cylinder?


So you can backup, with the dual piston you have to have a lockout to backup.

[western angler]

Thanks, I have a solenoid for backing installed behind the master cylinder that is wired to my back up lights.