I had a mattress in our home once that was sagging real bad in the middle. They pulled a string tight across the mattress to measure the sag. You might use the same method when you take the picture.. Just a thought...
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2015 Rockwood Windjammer 3029W Diamond Package
2014 RAM 2500 Laramie Longhorn 4 x 4
6.4 Hemi 410 HP, 410 Rear Axle
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