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1320quick's avatar
1320quick
Explorer
Aug 29, 2017

repairing blowout damage?

Hi guys, I've got a 2014 Sundance xlt. This weekend I had tire on the front axle, driver side blow out. The cap of the tire wrapped around the axle and pulled the two wires that go down to the brakes out of the underbelly. The wires are still attached to the brake drum and into the axle that go to the other side. So now the 5th wheel has no brakes on either axle which I thought was a bit weird. I thought maybe the rear axle would still work?

I don't know much about the black underbelly covering that is screwed to the bottom of the 5th wheel. I assume the right way to do this is to drop the underbelly cover? There is a gas line that runs along the side of the underbelly I need to take down. I hate to mess with a gas line. What are your thoughts in cutting a small access hole in the underbelly to gain access to the wiring? If I do that, is there a way seal it back up? If that is not a good idea, do you have to drop the whole underbelly or can you just remove part of the side where I have to access it? I assume the brake wiring will be pretty standard stuff like I have seen on my open equipment trailers?

The corner of the slide is basically right above the tire that blew out. It is a little beat up underneath but not too bad. It look like there is some kind of corner slide seal or something missing as there is a pretty large open space between the slide and the floor that I had to stuff a hand towel in to keep critter out. it looks like the main slide seal is in tact but something is missing from the corner. Any idea what that is?
  • Usually you should be able to take all the screws out and simply push the plastic off to one side. Maybe twist is some. Once its out of the way, you will probably find that the wires have been ripped apart. Now might be a great time to pull all new wire. Something of a heavier gage to carry more amps. If you do cut a hole, a piece of light gage sheet aluminum screwed over the hole should work just fine.
  • I have been up inside the under belly many times. Having to cut various access holes to get up inside. What I did was cut a 3 sided cut, about 15 inches per cut, I always cut so the uncut side is facing forward so no air can force the flap open. I would go buy 1x2 inch wood at Lowes and a small box of wood screws about 1 inch long. Once i cut the flap I would use the wood as a frame work to over lap the opening and screw the wood into the solid uncut belly material and then fold the flap up and screw the flap to the wood. using about a total of 8 screws per flap, sealing the cut up tight. If It was anywhere near where the cut flap would get water splashed up i also used gorilla tape to seal the cut area. Fast and easy. If your needing a bigger opening, no problem, just cut the wood to fit the opening.
  • Forgot that I also went to the heating/cooling and a/c store near the rv park we were in when we had a tire tread eat the underside of the slide out. I had them cut me their thickest sheet metal and had them roll the edge about 1 inch and gave a sharp edge. It fit exactly under the slide where the tires would be and it covered any damage the tire caused. Sealed up the edges with a rv sealer and screwed with stainless steel screws. Just incase I ever had another tire fail, I figured I would be protected.

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