Hi all, I really need some help on my 3 month old Mustang V6. I got a really good deal on a new 2014 Mustang V6 Auto Mustang Clubs Edit. The car came with a 2.73 rear end gear which as you probably know, is horrible. I had a local shop replace the gears last week. I used a kit from American Muscle which included 3.55 gears from Ford Racing. Here is where things went bad. After about 200 miles now my gears whine (more noticable between 40 and 65mph. Not loud but I can clearly hear it. And,,,the bigger problem: at speeds above 65mph the car has vibrations. These are probably two different issues but I am hoping someone here can give me advice on what this could be. Its going back to the install shop tomorrow. The vibration is the larger concern. i I could live with the whine but after paying $550 (not including parts), shouldnt I expect no whine and no vibration?
Some say gear whine is normal but most say its not. Vibration is an issue I know.
Thoughts?
Some say gear whine is normal but most say its not. Vibration is an issue I know.
Thoughts?