Anyone recommend a tranny shop within a 100 miles of Wilmington, de? My crappy 4l60e is slipping.I'm not looking for anything but a normal rebuild. I went to one shop and they quoted me $1700 I told them where to go real quick. Maybe I spoiled.In Jax,Fl I could have got one rebuild and installed for $1000 by the race shop SHIFTERS on main st. (highly recommend) any suggestions?