Blue Ox is a dealer for Tyron Tire Safety Bands. They sell bands to fit wheels up to 22.5". Not sure if bands for 24.5" wheels used on Newells during the 90's are available or not. Blue Ox can be reached at 888-425-5382 if you are interested in a set. Tyron USA can be reached at 888-RUNFLAT and their website is
http://www.runflat.com/. Their website site claims that the Tyron Bands can be fitted to the two front wheel of a truck for "less than one-half the price of one tire".