I understand your comment about the 5020 vibration now. The 5020 is the same tractor as my Simplicity 9523 and for some reason the 9523 does not vibrate near as much as the 5020 I just bought. I thought you were being picky but this 5020 only has 205 hours now and the fenders are cracked close to where the cab bolts fast. When it warms up I'll see if I can find the difference. There is a big difference between the two.