Rim spec's clarification needed for 285/70/17 Tires

Hey Fella's, I currently have 285/70/17 Duratrac's on TRD sport rims with Spider Trax spacers. I want to ditch the spacers. I want a rim spec that will work with a 285/70/17 tire on my truck without rubbing UCA which are currently factory. Rim size I've came up with are 17x8 (4.5" BS 0 offset??) or 17x9(4.75"BS -6 offset??). Are these the offset/backspacing numbers needed to achieve this? Also any rim Mfg to stay away from that might rub on caliper. Thanks Digger

 

Assuming 05+ truck? If you take your current wheel offset combine the spacer with it, that'll tell you what offset wheel you need.