1 Ton Conversion

[69 C10 LWB]

I have searched around and cant seem to find a consistent answer to my questions. I have a 65 C30 (I know wrong year, but stay with me) that I have been searching for rims. I swapped in the 14bolt out of my old 73 GMC. The GMC was a 2500, I have a set of hubs that came off a 3500. I was able to snag the hubs and the plates that bolt outside the rims. The plates have a spot for a pin but it appears to be broke off. The drums dont have a hole for the pin to fit into.

Here is the important question

Do the plates normally have a pin that goes into the dually rims? Is there a hole in the brake drum/hub as well?

If anyone has pictures of how a dually hub and the plates look when new please post them up.