Hi Jeff,,,Sorry to tell you this but,,,,you have the wrong plates.
For a '52 panel youll need '51 series plates. Then you add the '52 tag in the corner.
The '56 plates are only good for vehicles from '56 thru '62.
The '51 series plates are used for vehicles '51 thru '55. BUMMER!!!
Marty :mad:

Marty
'54 Panel and '54 5 Window Pick up, in the Gallery
'52 Suburban