I've been looking for a while, maybe in all of the wrong places, but I was wanting to find an engine driven comp. for my 89 Ranger. Does anybody know is someone makes one or if there is one I can use. If I can't get that however I am going to get a 12 gallon tank, so what sized comp. would be a good one to get for just the 12 gallon tank? Thanks in advance to everybody who answers.