hey guys im new here. and im going to be getting some a 89 pickup this week. and i want to know how big the hub bore on rims has to be. I might have to bore it out some and i want to kno how much. can anyone help??
I measured for hub centric rings recently and I want to say it was 2.6something, but don't hold me to that.  Not sure if that helps you at all or not
If your not in a huge rush or if someone else doesn't answer before then, I'm going out to my shop tomorrow night probably and I'll get you an accurate measurement