I have a problem with the deck it won't stay level when u put it on the lower cutting levels it rips into the dirt on the one side I have dropped the deck off and replaced the blades the mower is new the deck dropps the whole way to the ground on the one side I looked on where the rails come down from the lever to the deck. The one side is one the metal guide and the other side is off it by a 1/4 in. I can't seem to figure it out any help or suggestion would be great

Not real sure of what you are saying here, but check for broken hanger brackets, or cables.