ProComp will make some of their steel wheels in a custom backspace. If you talk to the guys at 4wheelparts they can put you in touch with somebody at ProComp. The ProComp person will give you a part number that you can use to order through 4wheelparts. Other vendors besides 4wp probably do the same thing.
When I was looking I didn't find any other options in an alloy 16" with around a 3.5" backspace. Not to say they don't exist, but I had no luck tracking anything else down.
When I was looking I didn't find any other options in an alloy 16" with around a 3.5" backspace. Not to say they don't exist, but I had no luck tracking anything else down.