I have an account that a business has 4 loading docks. It is a pretty steep angle down the docks. I need to backdrag out the docks but it is sometimes hard to get out. Due to the angle of the ramp, my truck struggles to get up the ramp. My tires are good (1yr old) and have no problems pushing snow on flat ground. Does anyone know if there are any tricks to getting better traction when backdragging the loading docks? I use a 3/4ton Chevy Dmax with 400# of ballast. Thanks in advance for any help.