I"m not sure if this has been said before but here goes. I have the 54" Raptor SD which had the clutch pulley rattle. I took it to the dealer last year to have the recall work done but it didn't solve the problem. Since I listen to earbuds while I mow it hasn't bothered me too much since I could mostly ignore it. About 3 weeks ago I put some Gator mulching blades on and wouldn't you know it, they solved the rattle! ~10 hours of mowing rattle free so far. The extra weight I assume. So if you're on the fence about buying the blades, here is one more reason.
Anyone else have the same experience?