hi, duodeluxe, I was wondering if you were ever able to solve this seal problem, I been living this nightmare for about six months, Clark first told me that they been selling me seals that don't work, if the seal has a # 3399 stamped on it, it won't seal, that's what i been getting ; that i need a seal stamped 38709 , I located a couple and it still leaks. I'm about to try the standard seal 38703 that you mentioned in post.