5.2 motor mount ears vs. 5.9

It's possible it may depend on the year. I did a 5.9 magnum swap in a '71 Scamp and used the 360 Schumacher mounts and everything was fine. Did a 5.2 magnum swap in a 71 Duster and bought the same mounts, didn't work on Driver's side and has to order a 318 driver's side bracket from Schumacher. Now that 5.2 was '93 model, so maybe that had something to do with it.