[JohnB]

Thanks for the info. I was planning on tying the liner and stringers together. The liner has "sagged" down some, and has caused stress cracks in several places. I was thinking of putting some cross bracing in front and behind the tank running between the stringers. Have you ever seen/done that?

I spent a couple hours on the gas tank yesterday, and it is wedged in there pretty tight. The foam is compressed tight. I am going to put some long 2x4s underneath it, with threaded rod going through a cross brace and use the threaded rod to apply preasure. I think steady presure on it will release it out. Once I get it moving out, I will cut what I have to to remove it.