1 1/2" billet spacers are what I used. They work like a champ. And 3" extra width on that narrow front track can't hurt. You will have to run 17" wheels for everything to clear...

"If it sounds cool, then it is cool"-Billy Gibbons
I gots a 1950AD 250L6/700R4 and a '52 1 ton Panel

http://i1206.photobucket.com/albums/bb460/gibsonflatpicker/ChevyPIRI.jpg ====The truck
http://i1206.photobucket.com/albums/bb460/gibsonflatpicker/woodyOct10.jpg =====The car
http://i1206.photobucket.com/albums/bb460/gibsonflatpicker/bikeaug09.jpg ====The bike
http://i1206.photobucket.com/albums/bb460/gibsonflatpicker/Panel_zpsszb2b6bo.jpg ======52 1 ton panel (the newest member)