I had a 97 endeavor. The floor was rotten right around the base of the toilet and the toilet flange had cracked because it was not being supported. I ended up installing a sheet of 3/4 inch exterior plywood OVER the tile in the area around the toilet. Then I installed a new toilet flange and a piece of PVC pipe to extend the pipe to the level of the new floor. I screwed down the plywood to the sub base below the ceramic tile. When I was done, I installed some vinyl flooring over the plywood. I just did not want to get involved in ripping up the original flooring. It was totally solid afterwards. The toilet used to feel a little soft when I sat down on it. It also used to smell. After the fix, the smell went away. I did this in a state park campground while traveling.