Come down to Beecher, IL and get them done by a local that is a tranny/rearend pro who also works for Ford. If thats not good enough go to Manteno, IL right next door to Beecher and see Troy Trepanier. He'll refer you to anything you need. I'd take his advice since he's only built Street Machine of the Year 3 years in a row which would include Sniper and Chicane. Besides, his shop will blow you away and hes really nice. We are only 40 minutes south of Chicago. Call DSS, they are in St. Charles, or UTI aka Hot Rod U, they are just south of Chicago. Plenty of places to go or places to get referrals.