Guys with 60's on rear

[Nolowrider]

Hello folks, I am in ther process of shopping around for some new rims. I am really looking hard at these. My problem is that I have 60's and I would like to keep them but lower my rear about 2" more. The rims I have now stick out too far to lower it anymore. I believe due to the backspacing or offset. I am not a rim person, so I don't know. What are you guys with lowered trucks, running 60's using as far as rims go? What offset/backspacing? I have the stock 12 bolt axel. I like the old school deep dish rims, but may have to comprimise to get lower.