Question
 

I have these rims I want to put on my Blazer, but the bolt pattern is 139.7 what would I need to get them to work?

5-bolt rims? That would make for 5 lugs on a 5.5" bolt circle. You would need adapter rings for these to work. Then you have to worry about the backspacing on those rims. If they are already less than 6" back spacing, you may get into trouble...

Yeah they are 5x5.5 5 bolts. What do you mean by the backspacing?

Here's a link CLICK from a thread that was just posted 3 days ago.

Have a look around, there's plenty of resources in the threads that are already posted.

Backspacing: :icon_google:

http://images.auctionworks.com/hi/59...ackspacing.jpg

Thanks that picture really helped. I will be okay in that area. So how much would these adapter rings cost for all 4?

Look here for wheel adapters. http://shop.ebay.com/items/?_nkw=whe...ters&_osacat=0
As far as backspacing is concerned... the wider the wheels, the more attention you need to pay to this issue. I recommend staying as close to the stock bs as possible. You may also need a lift depending on what size tires you want to run.

Okay as you guys can tell I'm clueless about this **** unless it's for car audio lol....two questions:
1. If my backspacing is more than 6 inches what do I have to do? Because I just measured the rims, and they are a little more than 6.

2. What size wheel adapter would I need to put these on a 98 s10 blazer?
(the rims are 139.7 5 lug, 24's)

How are you measuring backspacing?... if you look at Sisk's picture above, you will see that the inside edge of the rim is 6.5"s from the part that goes up against the hub.
If your bs is just over the 6' mark then I would go with a 1" spacer.
24"s?!?... really now?... I am guessing that you are not gonna be doin much off-roading!... lol Please post some pics when you get them on!

Okay I got you...and no I'm not really the off road type lol. I will post pictures as soon as I get them on. Go big or go home you know.