I'm with Don, after you get the ignition squared awy, switch to a set of 3.50's or 3.73's in the rear end... There's a lot of companies selling them, probably run around $700 to $800 to get a set of gears and a posi new... Maybe a bit less if you do some careful shopping... Usually a hungry hot rodder around someplace to do the work for you, check with some of the locals and see who is a well respected wrench in the area that does a bit of side work. A lot of the repair shops and dealerships have personnel who are totally lost on fixing things that aren't diagnosed on their scanners... Find a hot rodder with his own shop, check out his work and his rep, make friends!!!! I have numerous customers who couldn't change their own oil, but still drive some of the slickest cars around....