OK, let's try this again: A LARGE BOLT PATTERN Wheel is 4 1/2 inch. SMALL BOLT PATTERN wheels are 4 INCH.
IF you have not converted, your stock 64-72 A body will be SMALL BOLT PATTERN. Your 74-76 A body is LARGE BOLT (73 can be either)
B, C and E bodies are LARGE BOLT PATTERN.
Now that we...