Got ahead of myself, may have a wheel problem.
 

So I spent too much time finding a wheel with a 5x4.75 pattern that I actually liked. I paid no attention to the hub bore and it's diameter. Which ended up being 82.8mm. So the center bore on the truck is 70.2mm? I think was the correct number. So what I need to know is, What can I do to compensate for the 12.6mm of extra space there? Or if they will work at all. Thanks for all who reply.

You really don't have to do anything. You basically have found a lug-centric rim which relies solely on the lugs to hold the rim on. The OE design is hub centric which supports the vehicle on the hub and only relies on the lugs to keep the rim snugged up to the face of the hub.

Being lug-centric doesn't necessarily mean that it is unusable, but I would definitely inspect your lugs to make sure there are no visible defects that could cause you to loose a wheel.

Some aftermarket rim manufacturers that have larger hub bores have plastic rings that can be used to help get the rim centered before you draw the lugs down.

Thanks again
 

You are truly an endless abyss of knowledge swrtlkk. I appreciate the help once again buddy. Have a good one.

yeah like swartikk said if it bothers you you can get hub centric rings. here is a link to what i am talking about

http://www.amazon.com/82-8mm-71-5mm-.../dp/B002NW7K9M

those are not the size you said but they will show you what to look for.

Mucho appreciated
 

Thanks Nismo, I appreciate the link.

no problem. like i said those are not the size you said you needed but it dose show you what to search for.

bore diameter
 

I looked over the forum, and searched again for the actual hub bore diameter for an 01 4x4 blazer, but with no luck. Either one of you guys know what that exact diameter is? I just wanted to double check before I actually purchased them.

hub rings are not required but they are a good idea and generally when you buy aftermarket rims from a rim shop they throw them on for free. they just fill up the extra space and stop some vibration.

just be happy you didn't buy rims with a center bore that was too small... but as mentioned before, hub-centric rings can compensate for the bigger bore