What were stock wheels/tires on a 60-66 C20 3/4 ton

[jrblanke]

Hey guys, I have been searching through old posts but have been unable to find the stock wheel and tire size for the 60-66 3/4 ton 2wd (I want to know specifically the 64-66).

I have read the wheels were both 17.5" eight lug and 16.5" eight lug. Both of these being split rims? I am not familiar with what exactly split rims are or their purpose/function.

Does anyone know what sized tires came on these trucks? Was there a heavy duty wheel option that could explain why people said there were two different sizes? Maybe I just misunderstood the posts.

Any help would be appreciated!

Thanks,
James