Why Would Trailer Calipers Interfere with I-Beam Frame on Trailer After Install of Disc Brakes

Question:

OK, Ill try Not to be long winded. I got your disc brake conversion kit for my boat trailer. Which happens to be an I beam trailer. So, now the NEXT problem, Ive had several with this kit thus far, is theres an clearance issue between the bottom of the I beam and the top of the brake caliper. YES, everything is mounted properly even though there were zero instructions included with the kit. Im a tech and fabricator by trade. My question is, have you had anyone else run into the similar issue and if so, how did they correct the issue? My thoughts are to get this kit of hangers to raise the trailer frame height to give me the added clearance I need. As opposed to replacing all the springs, and more than likely Not getting the right springs to correct the ride height ergo get the clearance required for this kit to work, and not rip the calipers off on the first bump I hit. It is tandom with a 6500lb vessel on it. I saw in the QandA that some people have done this on otherinch trailers. not for this specific issue though. And I want to be ABSOLUTELY sure before I go through all this. Sorry for the long post and thank you in advance for your time and reply, Regards,

asked by: Patrick C

Expert Reply:

I would have to see the setup to see exactly where the interference is but raising the suspension is a possible solution. Other possible solutions are to try a lower position of the caliper on the mounting flange. It sounds like your axles could also be a bit too short to work ideally on your trailer. Since this is the first time I have ever seen this problem I would lean strongly towards this being the issue.

The diameter of your trailer axle will determine the size of the parts that you will need to order. If your axle is 3 inches diameter, the Dexter Trailer Springs Over-Under Conversion Kit, # K71-385-00, would be a great choice and if your axle is 2-3/8 inch diameter you could use the Over-Under Kit, # K71-384-00. These kits can be installed without welding but the manufacturer strongly recommends having the new spring seat tacked in place on the other side of the trailer axle.

expert reply by: Jameson C

Blaise

4/26/2024

I just tried to move my brakes from my old sea lion trailer to my newer continental trailer. I have the same issue the caliper is goi g to hit the underside of the frame. I am concerned about raising the trailer as my T-top just clears my garage door now. Do they make calipers that might be a little thinner?