I'm needing a 39.5" spare and an off road shop close to home has "a very aggressive firestone that's in good shape, they were very popular in the early 90's" I have no idea what the tread looks like or what the tire looks like for that matter. Apparently it's a tire specifically for light trucks, not an ag. tire. I've searched lots for pictures but can't come up with anything. Does anybody know about firestone producing a serious off road tire in the 90's? I'm supposed to go get it on Saturday and would like a little info on it before I commit to buying it.