[tjsblazer]

Brian these are nice looking wheels and would look great on a truck for sure but I don't believe the factory every put a set of 16x8 wheels out for this era.

I don't want to impact your sale (excellent price btw) but for the purpose of everyone's education, including my own, I don't think these are Chev oem. I researched this for many months and actually just got a set myself fabricated to be 16x8's.

The only 16" 6 lug rim from GM for this era is a 5" skinny rim with the center riveted to the outer hoop. These were used on vehicles that were ordered with a higher ply bias tubed tire. For this era, they came with a similar looking center to yours from 63 -70 and a slightly different looking center with 4 nubs in 71 & 72. These were available on both K10 and Blazers.

I have attached an image borrowed from another thread of the option part numbers showing the list. Also note on the list that there isn't the popular 15x8" shown. This is because technically they were not a factory listed option. I think they were all post production or dealer installs.

Again, I am just putting this out there for information which is one of the big benefits of this forum.
Regardless the rims look great and the price also.