Selecting offset wheels for my Lifted 85 K20

[fender89]

Am looking at new wheels for my 4" lifted K20.

I want 315/75/16 tires.

The wheels I'm looking at are 16 x 8 with a -6mm offset. I'm curious if that would be enough offset. Maybe I need more.

Any suggestions would be helpful

 

[Grit dog]

OE offsets, for a 8" wide rim is -13mm / 4" BS I believe. So 7mm more neg offset. Close enough, IMO. 8" wheels with 3.5'-4" backspacing is basically factory stance width.

 

[77 K20]

I ran some cheap Vision Soft 8 steel wheels with a -6 offset (4.25" backspace) wheels with 315/75R16 tires. Worked fine for me.