Thanks!!!! everyone keeps talking about this "clip" and i had no idea what to look for. i spent quite a bit of time with my hand up my door's skirt, so to speak, feeling around. But I don't know what I'm doing so, for instance, when i saw that flat piece of metal I wondered if it was the clip, but I couldn't get it to budge and i don't want to do something stupid and create a mess that is more expensive than just paying someone to change out the cylinders for me. So i will try a screwdriver. I might try some WD-40 to loosen it up first. Every screw and bolt on this truck needs some encouragement I swear :P
UPDATE: I tried everything, i could not get that *bleep* clip off. So I walked over to the locksmith next door and he's going to do it for me Wednesday a.m. At least all i have to do is leave it in the driveway and he can just walk through the hole in the fence :P
bummer. i hope autozone sent me the right ones, too, but if not at least i can return them locally.