Im ordering some wheels from national wheel and tire i have put all my truck info in but it hasnt specified lug pattern. anyonw familar with this site. is that why i enter what vehicle it going on? I just want to get the correct lug pattern. Thanks

 

I've never bought stuff there. Send them an email. Ask if the wheels are 6 on 5.5 and ask what backspacing.

 

I bought tires from them but never wheels and yea 6x5.5 should fit chevy uses the same bolt pattern on their trucks incase you were unaware. I run 3.75 backspace for my lift and I think that seems to be a pretty safe bet for backspace on any after market wheels.