While my Mark was up on the rack getting the trans out, I was under looking for something that might be rattling. It sounds like shock mounts but I already replaced them. Lower control arm bushings looked good, anti sway bar ok. Then I pressed up on the fuel tank and heard what could be the source of the noise. The question is, on the left side of the fuel tank I could physically push up on the tank and it would move about two inches vertically. Both tank straps are tight and the right side of the tank is held firm. What is holding up the tank on the left side? Is something missing or is this normal?