On your camper, we can try and help suggest what may need to be fixed on your camper, but we need to know more about the problem.
Suggest you start a new post for just your camper, tell us about the problem, where you see it, and ideally you can attach some picture of the area, both close up and far away so we can get a perspective on the problem. Then we can better suggest how to fix the issue and what may be involved.
Also, tell us in that post the year and model of your camper. Knowing this information we know what vintage Sunline you have as they changed the manufacturing methods over the years. What works to repair a 70's Sunline has different sizes and methods of building them then one in the year 2000's for example.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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