Earlier this year I got a great deal on a Toro 62" Z-master and find that it really saves me time and energy on wide opens as well as some of the smaller places. I have been able to do my lawns alone in the same time it takes me and my wife with her on a 44"WB and me on the 52 Walker. I mowed just as I have done for the last 5 years (its a 2000 Walker) and then switched to the Toro for some wide out mowing. When I got done I returned and was going to fuel the Walker since it had cooled and I was ready to trailer both machines. As I picked the hopper up I noticed the whole back end of the machine shake. To my surprise I found not 1, not 2 but 3 welded areas of the machine were cracked completely off. This machine has never been abused, dropped, rolled or anything that would lead me to figure why it happened. So I am at a loss. My mechanis at the dealer has never seen this type of break on a Walker but he said that he could weld it back with relatively little problem. I am just glad it didn't fail while I was mowing. There were only 2 welds holding the back half together.