I went out to the car yesterday morning and saw Lake Erie underneath. I snooped around some and saw that it wasn't any of my hoses, but that my ElCheapo radiator I bought 2 years ago had sprung a leak. I had it installed at a shop and came with a lifetime warranty, but I cannot find the paperwork for it, so the warranty cannot be honored. Since I've never done a radiator before, is there anything I need to watch for when replacing a radiator? Are there any special tools?

Lemme know, as I'm not looking forward to replacing it this weekend.