How much to do some 3.73s in my 2012 GT A6? I just had Ford dealer do 4.10s, but I'm not too pleased. It whines on decel, and I brought it back, told them it is pinion bearing preload, they adjusted backlash and said it's all fixed, but it ain't. I don't want them touching it again, and I think 4.10s were the wrong gear for the car anyway. My tire shop is in amsterdam, so you're close by. If you'd prefer to discuss on phone, my cell is 518 657 9117.
need to buy more parts, so i have to start doing some side work, anybody looking for mods to their stang please let me know, i have a lift in my shop and i'm also a cerified welder. i do roll bars , subframe connectors, and other mods.