WTF? I was driving my dad's 93 fzj80 today for about fifteen minutes. The tempature was about 90 degrees. I had the a/c on medium, the truck was not over heating. As I pulled into my school parking lot BOOM the radiator exploded . Blew the top apart. When I got out I noticed the fan belt and water pump belt were loose enough to pull off by hand. We had the belts changd a month and a half ago. Is this what caused the radiator to explode or what? Is it common for this to happen with the stock radiator after 230000 miles. We had it towed to the place that changed the belts to see if it was there fault or not, We think they might have done it wrong, causing the radiator to explode, but then wouldn't the truck of overheated also if the water pump wasn't working. any comments appreciated, thanks