Hello new to the forum please help I have 2 Grasshoppers both 725'2 around 6k hours on them each. The issue is that the one has the power lift it had been replaced 5 times by the dealer because it stopped working. I have been into it some and all the gears up front of the lift arm are good. it just rattles no up or down I am guessing there is a screw type mech . behind the front set of gears that operates the motion. But I sort of lost to find a listing for parts or know why this keeps happening. I read many people that have had them forever and no complaints about this.