Rear dropmember stepside overall tire diameter

[88k5jimmy]

What is the maximum over all tire diameter for those of you that are running a rear dropmember on a stepside bed and have it lay out without sitting on the rear tires? Also, what wheel/tire/backspacing combo does not rub?

I tried searching but haven't found much. Thanks.

[forestb]

I have a set of 275's with a 5 inch drop and I have rolled the lip of the fender. There are places on the lip that will bot role because of the support braces. If I go any lower they will hit the mount for the support brace. I also see where some of the paint has rubbed off from the tire rubbing on the bed inside the fender.