Does anyone know approx. how many 630's were made with the single front wheel. One is coming up at an auction next week and I was curious to see how big my wallet needed to be !!! Thanks, Tom Smith Mount Airy, MD. Tsmith1499 at aol.com 1941 AC C 1942 JD LA 1961 JD 3010 1969 JD 55 Combine 2002 JD GT235 L&G