they are 16x6 and they are definately 8x6.5 bolt pattern. i think the hub cutout is big enough, but they are conical style lug seat. my ford has the lug nuts with the flat washers on them which means the hub centers the rim and not the lug nuts right? thats my question will they work with that style lug seat. i know in the rear i have to run the stock steel rim on the inside(i think you have to do that with all the aftermarket alluminum dually rims) is this gonna cuase probs with the lug nut styles being different on the two rims?