Disc Conversion with 1970 factory 15" 6 lug rims - question yet again...

[jasonmiddlebrooks]

So I have dug through the multiple treads on the disc conversion for a 1970 c10. I think I understand most of the information I have read.

So the three nub rims are suppose to be for drum brakes. I have 15" 6 lug three nub rims but when I compare the inside of the rim to the below picture I found it looks like my rims would have the clearance for disc brakes. Can someone validate for me from the below pictures that I could convert to disc brakes and still use the same rims?

Thanks