Well the info that megolfer about cruiser outfitters is good. You only need to have front "turned". You can usually fit 35's with a spring over and stock springs. If you want to be taller i've heard good things about old man emu springs, but some more reseach on that wouldn't hurt. You probably won't need traction bars, but it will also depend on tire size, power and what you are doing with your rig.
Go here
http://www.ih8mud.com/cruisertech.php for everything you need to know.
