Mine was a JD 4500 that weighed 3450 without any other weight added including the fuel or loaded tires etc. With the dual rear wheel weights I had on each side I was at 4K and with the FEL (900 lbs) or any other attachment I was well over that amount. I wouldn't want to run it on a nice lawn anymore than i had to. I ran it across mine now and then, but never in the same track going one way and then the other. The CUT I have now weighs 2K without the FEL and it doesn't cause any problems unless the ground is saturated with water. I wouldn't want to run my 48" plugger behind my Z950. It has plenty of power, but when the spoons are buried in nice and deep, it puts a good load on whatever is pulling it, and I won' subject my hydros to that.