My '91 has suddenly decided to quit starting. Starter makes the sound that sounds like the battery is dead/almost dead. Battery is fully charged and terminals/cables are nice and clean. Lights are bright, horn is loud, everything else electrically powered works great. This just happened suddenly. Do the starters/or solenoid relays on these rigs tend to quit suddenly? Past experience with other cars/trucks is that starters generally start acting up or giving signs they are about to quit working. This one didn't. I went out one day and it cranked slowly - like a low battery - but it did fire up. A couple weeks later I went to start it and nothing. The weather here has been too wet/cold to crawl under the truck and work on it.