Custom Classic, also know as EZ Custom. This was the mount where the whole thing was made out of angle iron, and the Lift Frame was mounted behind the vehicle bumper. There was nothing you removed in the off season. Some smarter owners would remove their pumps, but overall, it ALL stayed on the truck except for the Moldboard. The ENTIRE mounting was vehicle specific. There was no easy modification to make a mount from a Ford fit a GM, or a Dodge to fit a Ford, etc. This is the style of mount that was used from the 1950's all the way up until 1991 when the EZ Classic mounting came out.