News:
3.54:1 is the lowest gear(Highway gear) for the Dana 60 I believe...All that's left in your case would be a taller rear tire..
there was a listing for a 3.2 ratio for thew dana as wanted them as well , I tryed to order a set of the gears but there were none available anywhere in north america
I checked with a company called the Gear Center , they should have a web site