I am trying to install craftsman plow 486.24443 to my craftsman yt4000 model 917.28857. The plow manual does not show an option for my mower suspension. I have been able to hook it up but concerned that it is not going to be strong enough. I have a plate that would allow me to bolt into a top suspension but there is no top plate or bracket to connect it to. So right now it is only bolted in on the sides using the side brackets. Maybe that is correct but seems odd. Does anyone have any instructions to install this blade to similar mowers?