I bought a new Hustler fast track in 2009. I have never had any trouble with it. I will say that it rides rough has 18" tires on back. that might be part of the problem. The transmission whines real bad, I do not know if that is normal it has the 2800 hydros in it. I am looking at the Gravely brands and I think the one I have looked at is the ZT HD with the 60" deck. My hustler is a 48" cut and the 60" replacement costs 6199. The Gravely is priced at 5199. My son is going to get the 48" hustler. I am looking for something bigger and just as dependable at a good price. The gravely looked as good or better than the fast track. Looking for opinions on these two or any other brands. My budget is limited. I mow about 3.5 acres, some trees and uneven ground.