I have a 2002 chevy trailblazer LT 4x4. My father just gave me a set of 20x8.5 chevy rims with a bolt pattern of 6x139.7. I want them to go on my trailblazer, but my bolt pattern is 6x127. I can get wheel adapters for them, but i need to know how far the wheel will stick out from the finder, or will the offset make them fit ?

 

Theres no real way of knowing until you put them on.
You can take off one of your wheels and butt the rim up to the hub and see how far it sticks out.
Just out of curiousity, what kind of adapters can you get to change the bolt pattern?