Well, evidently the deck on my 60" Exmark isn't indestructible after all. I have been getting a bad cut (sawtooth effect) on my Bermuda lawns lately. I periodically hit stumps, rocks, tree limbs, etc. in some of the tall grass I cut. I leveled my deck and then checked the blades blade tip to blade tip and then from concrete to the bottom of the blade tips going across the 60" dimension. I found all three are not parallel with the ground. DUH! Anyway, I shimmed the mandrels with a washer, but I still don't have a great look. It's better, but not perfect. My question is: How do some of you guys (or gals) repair your decks. My dealer didn't really offer to work on it. I plan on taking it off, turning it upside down and putting a straight edge across the bottom from front to back and measure around each mandrel hole. Where it's off I would try a sledge hammer to beat it back. Since the blades were off approx. 1/4" max. at the tips, that would mean the mandrel area might be off only 1/16". If this is true, that could be very difficult to find. Any suggestions??