Nissan, Isuzu, GM 1/2T, and AMC 6-lug OEM wheels will not have a large enough hub diameter. I have not mounted up Mazda wheels, so I have no comment for them. Most of the aftermarket steel wheels that I've come across ago on fine. I have mounted up Toyota steel wheels from the 80s trucks with no problem, but they are only 6" wide. I've mounted up late model Tacoma 16" alloys but found the backspacing too much for my preference, then sold them for profit. I really liked the Isuzu Amigo wheels, no go on the front hubs without machining. Find some old Enkei or US wheels, or a narrower tire like a 33x10.5. <img src="/forums/images/graemlins/kewl.gif" alt="" />