65 DART 273 FEDERAL POWER STEERING PUMP
Something I read........These pumps were used on A, B and C's. From what I understand, the relief valves were calibrated for the weight of the car they were going in. So even though they all look the same they perform differently. If you end up getting a re-man that was set up for a C and put it in an A, the steering would be "floaty". And apparently, the relief valves are "fitted" to the pump they originally came with and not interchangeable. Sorry to muddy the waters......
BTW.....They are not terribly difficult to tear down and refurbish. There are kits for them.