[gumleguf]

http://www.unlimitedengineering.com/sprw.shtml

http://www.unlimitedengineering.com/smrw.shtml

http://www.unlimitedengineering.com/smmw.shtml

Looks like Panther is the only ones still in business with 3.2" tires:

http://www.pantherteam.com/index.php...ex&cPath=65_69