So glad to hear the company is taking care of that for you, Randy. From all the reports we've read on here, it seems Forest River has been consistently standing behind its product and doing the right thing in addressing this issue. I find myself in the same boat as Jim (above), wondering if I should be expecting to find a crack on my 2013 Windjammer 3008W soon. My rig has the identical configuration and slide as yours. Since my unit was not built until April 2012, like Jim I wonder if the cause was something which might have been discovered and corrected by the time my rig was built, or whether that has occurred even yet. If anyone learns the cause and whether any fix has been effected, I'm sure we'd all love to hear the details on those points.
2013 Windjammer 3008W
2006 Chevy Silverado 2500HD 6.0L w/Equalizer 4
Nights camped: 2012 (29); 2013 (26); 2014 (40); 2015 (43); 2016 (35)