I have a 1990 Wrangler that has started to make a loud squealing sound most of the time that it is driven. The squeal happens only when the clutch is not pressed and the jeep is in motion(doesn't happen when I first start the jeep). The faster I go, the more frequent the sound happens. Sometimes the sound doesn't happen at all. Other times, the squeal is so bad that I feel like the jeep is going to fall apart. Any idea on what the problem may be? I also don't know the first thing when it comes to jeeps or cars for that matter.