Was coming back from South Texas Friday about 25 miles from home when I heard a ding and had a check gauges light. My alternator had quit. Made it home, got a replacement and looked things over as to the best way to change it. Decided to wait until the next morning and let the truck cool down. It is a pretty easy job to change it, takes a couple of hours, get the air box out of the way, take the belt loose, wires off, two bolts out and you have it. Reverse the procedure and everything is working like new. I guess after 354,500 miles it was time for it to give up. I'm probably going to start having little things go wrong now from time to time with this many miles. As long as nothing major happens, I'm going to keep running with this one.