New to this forum, not new to tractors. I have a 1959 John Deere 630 Row Crop, 2 1954 Harry Ferguson TO30's, 1 1948 Harry Ferguson TEA20, 1 1947 Harry Ferguson TE20. I recently acquired a 1990 John Deere 430 Diesel. The 430 is my first diesel and I'm sure this board will be a wealth of knowledge to help me along.