Harvey,
You may be able to remove the cylinder and pull out enough slack to disconnect the old hoses. Then reconnect the new hose and re-install the cylinder. I routed the new hoses along the outside of the rail behind the slide, then through a hold into the bay, then back to the pump. Blow air through the old hoses and secure the ends out of the way. Measure 3 times, before you buy the new hoses. I cut off one end of the old hose to take in to match on the new hose. It was an all day job on the road. Good luck.
Larry