1972 K10 original wheels

[69Tom]

OK, so I'm doing some research for my 72 K10 1/2 ton rebuild. I'd like to keep this as factory stock as I can. Upon reviewing the brochure, it appears there are 3 different wheels one could have gotten when ordering the truck, all 6-lug:

• 15" x 6"
• 15 x 5 (no idea how this was possible with disc brakes); and
• 16.5 x 8.25

Is this correct? I'm sure someone with a data book has better info than the brochure.

Were the 16" split wheels?

Can someone post pics of the correct 16.5 wheels? Is there a part number for these?

At the end of the day, I may just order some 15 x 8.25 wheels that are out there that look dead stock, but I'd like to know what I'm doing before doing so. My searches have not given me my answers, and a lot of the old pics thanks to photosuckit are no longer visible.

Thanks in advance!