[B Humberstone]

My bedroom air seal had rolled and was coming out of the gap between the slide and the coach. I went through the  process of pulling the slide in to expose the seal and got most of it clear and reinstalled. There is a section about 4’ long though that is stuck under the slide between the bottom of the slide and the floor. It seams to be twisted and trapped under there. 
Has anybody had this issue. I was thinking about jacking up the slide a bit and maybe free it up. Has anybody ever tryed jacking up the slide and if so were and how did you jack it. I was thinking a 4x4 to spread the load or maybe at the spots we’re  the slide runs on the shim plates
I have attached a photo showing how twisted the seal is and I can only believe that what’s trapped underneath is just as twisted.