[Eric1970]

Thanks, Tim. You know your Chevy trucks.
5.5" is pretty narrow- that would explain why they used the equivalent of 215-235 tires.

Looks like I'll go with 8" and 255's all the way around for this build. Figured I'd be going over it twice in the long run, anyway. I would like the ability to return it to full stock eventually, if I should so have the whim, so no chopping or tubbing.

FrankieD, that is a Great link!

Thank you all for your help. I'm clear coating the 15x8 rally's and ordering the tires today.