You'll want something along the line of 3"-4", depending on wheel width. Use '87 and earlier 4x4 for the correct application, but do use cautuin if you get 7" rims, most places will sned rims for Jap trucks that have the wrong offset if you order 7". Also, rims from '88 and up will not work, the bolt pattern is correct, with the offset is too deep at around 5". Colorado/Canyon and Trailblazer/Envoy/Bravada/Ranier wheels are out, too. Same offset problem as late fullsize (6") and the bolt pattern is a small 6 lug (6x5).