I saw some carbon fiber caps for the center hubs on my 16" wheels: https://www.ebay.com/itm/4PCS-60MM-P...53.m1438.l2649
Blazer is 54mm inside the hub, decreasing the further in you go. Is this the same for all Blazers?
Maybe the clips won't even hold, IDK. Anyone have any experience in what size would work (if they do)?

 

Not sure, I used these recently on my 98 Blazer stock rims- fit perfect and then put these- Over them and used a square of double sided foam tape in centers to be sure they would hold. Gave a nice look considering I was missing several.


The black caps fit very snug and the measurements listed are accurate.

 

Looks nice! I think I'll give them a try. Will your caps at 65mm have to be removed for wheel removal?.

 

Nope, those hub centers can literally stay on forever. Technically no real reason for them to be designed this way (thus multiple rim styles). When you pull lug nuts and remove tire you have access to whole deal. They are basically just hub caps.

 

I want with the ones in my link (cheap) "4PCS 60MM Plastic Black Carbon Fiber Look Auto Car Wheel Hub Center Caps Cover" and it looks like no go. The clips are long and because the inside of the hub on the 2wd Blazer slopes inward, they have nothing to catch on to. Also the rear hubs have interfering support structure that prevents insertion.

I will try shortening the clips and using some adhesive, as you did. Maybe that will work..