I have a 98 AWD Explorer and while driving it makes a loud roar and a grinding metal sound while slowing down. I took it to the dealer who is a trusted friend. He removed the transfer case and front end drive shaft, it still drives on a rear-wheel drive basis and drives fine with no noise. What I'm concerned about is long term effects of not having the front end drive shaft. Can anyone tell me if this is a really bad idea and is only going to lead to more problems later down the road, or should I be fine with it this way?