I am trying to find a newer rear end with axles for a 1957 lcf f350 series 2 ton. Will a c50 rear end fit and is it a single speed axle or is it 2speed?This is not my truck but I am helping a friend of mine but really want to upgrade to a newer rear end with duals to pull a 12,500 pound sailboat.GVW says 19,500lbs if I understood him correctly. Any information is greatly appreciated. Thanks in advance
