Yeah i installed the 10.5 ghs blower in my 2003 walker right before fall cleanup last year and used it for all of fall and spring cleanups (which was a lot) and till saturday of last week when it was to bad to operate. I think it is my fault because i put that blower through hell with the amount of sticks and rocks I have hit. But it all started June 1st when my buddy hit a good size stick in the grass and it bent over one of the fins on the blower wheel so that it was rubbing on the casing. I bent it back with a pry bar and it worked fine until I hit another stick which bent it right over so it was touching another fin and it vibrated like hell. So i think the whole balance of it is off and my dealer has ordered me a new wheel and its nice and easy to take apart only took 45 mins with 2 people. Also I used it in a lot of dusty, and sandy areas so I'm sure the abrasion wore it out quicker too, actually it only saw a month of actual lawn mowing, but for the amount of money I made with it to the $85 or so for a new wheel, I'm not complaining, just wondering if anybody else has had the same problem.