Don, you can get the Racor filters at Star Truck Sales in Jackson. They are right off of Airport Rd & I-94, exit 137. They are right behind Denny's on the north west corner, down the side street. They have parts for just about anything Diesel, and are open to the public. A little pricey, but in times of an emergency, they are the only game in town that has a diesel parts counter that I know of. Give them a call, ask for Julie, she runs the parts department.
Mike