2010 mustang gt vibration in front driveline at 72mph and 2200 rpm need help
I have an 07 GT and am having the same problem. I took it to the dealer for an oil change and was told the rear diff was leaking. They replaced the seal and then I started having the vibration between 70 & 75. I picked up my car Friday (after 2.5 weeks in the shop) and it has a new drive shaft, ring and pinion, engine mounts, tranny mount. New whinning noise on decelleration (which started after they replaced the drive shaft at the dealer). They said I'd get it back 100% (it has every problem I took it in for and more...) They told me it would take 200 - 300 miles for the friction modifier to break in...??? I think its crazy!!! Why don't the certified ford mechanics know what the heck is wrong?