I was running errands today, and when I got out of the truck, I caught a whiff of antifreeze. Looking under the truck, I could see some water, so after I finished my errand, I high-tailed it home. The engine bay was *soaked*, but the truck never overheated. I couldn't tell where the leak was coming from, I just was praying it wasn't the water pump, one of the head gaskets, or the block. Since so much coolant had leaked out, I removed the radiator cap, and a fine spray started coming from the core. The hole is on the engine-facing side of the radiator, and there's no puncture hole on the front side that I can see, as that area is covered by cladding.
I called up RD, and they said they don't do repair, but they told me to find a place that does industrial radiator repair. I found a place not too far away, called 'em up, and they said they could repair it, but they aren't open tomorrow. So, looks like I'll be dropping it off Monday morning @ 8, as it's a tad bit hot under the hood right now and I don't feel burning myself. Yay.