I'd check around that area very carefully and see how bad it is.Sometimes they go from the inside out like mine did , and that little thing could be whats showing so far froma much bigger problem.Once I get the body off the bad frame , I'll post lots of pics of it , just so you can see what happens from the inside out <img src="/forums/images/graemlins/smile.gif" alt="" />Also its a good idea to get some rust stop and apply it generously to that area.

1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others