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Brake Caliper - Which One?

Kirk Rieber

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I've got a stuck caliper on an 08 boatmate tandem axle trailer.  The only thing I see stamped on the caliper is UFP.  Can anyone tell me how to pick out the replacement caliper that I need?

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It is probably the newer style UFP DB-35 caliper.  Easy to get from most trailer repair shops or online.  Whether you get a right or left side one, just make sure the bleed screw is on the top and the hose is on the bottom fitting when you install it.

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I took one of the calipers off last night to tear it down to see if a rebuild is an option since it's significantly cheaper.  I discovered that the outboard brake pad was on backwards, so the steel backing plate was against the rotor.  I can't even begin to image how that gets installed like that.  I haven't looked at the others yet, but i'm assuming I'll find the same thing on all four wheels.  


I couldn't get the brake cylinder to move at all.  Its soaking in WD-40 at the moment, so I'll try again tonight, but it looks like new calipers are needed.  hopefully i can just rebuild them, since i need to replace the ruined rotors now too.



Edited by Kirk Rieber
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