Here is a used Western conventional mount 73-87 Chevy GMC Truck. This is the old style mount that stay on the truck. If you have an old style plow this may be the mount you need. The mount # is 59950 Kit # 1510. This is just what you see if you need the bolts you can use the list below to get them. You get Lift frame 60080, clevis 59595 support arm 59553 and arm 59655.

Here is a link to the Installation instructions for 59950 Mount kit