1966 Plymouth Fury 3(4 door) rear door window regulators

[Mark Snow]

Hi, I'm an owner of a 1966 Plymouth fury 3 and my back window regulators are busted and need to be replaced. I'm having an impossible time locating them and I'm wondering if anyone knows the part number or where to find them? I'm assuming there different from the front 2 regulators or are they the same? Any help would be greatly appreciated