2001 Ford Mustang Loud Screeching

So I took it to one mechanic and explained to them what you and I thought it was. They took about a day to come back to me and told me it was the torque converter. They suggested that since that was bad that I should swap out my tranny as well. They guy was kind of rude. He kept asking me what was more important to me, having a car that runs or having a/c that worked. I really didn't know what he met. I asked him if fixing the tranny would get rid of the noise but he just kept referring to that comment. So, I decided to take my car back and get a second opinion somewhere else. I explained to them the same thing and what the other guys told me. They said usually a torque converters don't make noises like that. Fortunately, the new mechanic I took it too was actually a tranny specialist. Anyhow, he checked it and told me it was the Cam Synchronizer. So, I'm hoping that's all that it was since it is a significant difference in repairs and costs. Thanks for your help! It allowed me to go there sounding like I knew a little bit about what I was talking about.