I'm not so sure what to think. This seems like a nice place, but they charged me $80 for a diagnostic on my 4wd noise and never figured it out. Ended up being a driveshaft per another mechanic, and was quick fix. They did recommend doing the driveshaft but couldn't guarantee that it was the problem. I guess you have to give them credit for their honesty, you don't see that too often. I'm glad they didn't just start blindly repairing things, but this should have been an easy thing for a professional to figure out I just wish that if they can't diagnose something for sure you could get a discount on the diagnostic fee..