3.5 to actually clear the brake caliper (stock 85), 3.75 is most common aftermarket and is what I have and I have to mount the wheel weights inside the rim or they get knocked off. You can custom order any backspacing from AR from what I have read off pirate. I would go 3 inches for a wider stance or maybe a 16 inch chevy rim. But why not get some 3.5 old stock rims and run the new 33x10.5 or soon to be out 35x10.5
85 Flat deck toyota, chevy's, new frame, for sale.