I'm looking for a 1965-75 GM corporate rear for a 3/4 to 1-ton truck. These are also known as a "GM Pig" or "GM 10-bolt Truck Rear". Single or dual wheel is not important. Third member should have 411 or 393 gears. The third member drops out of the front of the housing like a Ford 9". The housing has a round center section. Some have a rear cover and others are part of the housing. Willing to pay $50 to $100 reward if you find one and I purchase it.