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General ChatChat about all things Blazer (and related vehicles). Off-topic stuff should be in the lounge, and all mechanical problems should be posted in the proper forum.
Stock pieces were stamped so they could be more rigid using thinner material. They could be replicated using thicker stock and not have the rib around the outside edge. Here are a few pictures of what they could look like as it seems there were two different versions of them and I have not found a reason for this nor a specific year that one applies to. My '74 has the more triangular ones.
Pictures: Top view of the more triangular 73-75 K5 Topper to Windshield Brackets Bottom view of the more triangular 73-75 K5 Topper to Windshield Brackets Top view of the more rectangular 73-75 K5 Topper to Windshield Brackets
I do not believe that these are recreated in the aftermarket so your options are limited to someone having originals they are willing to sell or remaking them yourself.