It seems like every 2 weeks for the last little while Ive had to dump more money into my truck just to keep it on the road. Ive spent over $2500 on it in the last year, and thats just repairs, no real ad ons. if i hadnt spent so much id sell the damn thing... anyway. I discovered my rad as a nice leak today. the seam on the drivers side end cap is leaking. looks like another $280 for a new rad. for now i have tried dumping some AC Delco stop leak in it, figured it was worth the $5 to give it a shot. anyone had luck with this before? idk yet if its worked or not. If i do have to change my rad, how difficult is it? my mech. says today that i could probably do it myself, but then therell be no warrenty on the new rad. should i do it myself and save the $180+ in labour, or get him to do it to get the lifetime warrenty?