Troy Bilt Gtx 20 deck hang up when on incline

[troybiltbob]

I just bought a 20 hp gtx and the 60 inch mower deck hangs up when I am mowing on uneven ground. When it does the wheels on the side of the deck dig into the ground so hard the mower will not move and the drive wheel slips. Has anyone else had that problem? If so how did you fix it? I also have a 16 hp gtx and the 48 inch deck has never done this, I bought it new and always wanted the 20 hp gtx. Gonna sell of one of them love the 20 hp but need to figure this thing out before I do.