these were on my dad's '97 blazer when he bought it, i have them now and am planning to put 235-60-15's on them. they have a dual-bolt pattern so they fit either 4-3/4 or 4-1/2 bolt patterns. they take "et" lug nuts, had to order those, couldnt find at any local parts stores. dont have the bolts that hold the center covers, missing one anyways and one bolt had broke off in the rim. from wheat ive been able to figure out these were sold by sears and made by american racing. found one center cover on ebay, for $40.00 going to switch these between 3 vehicles, the smaller size will make my 3.73's seem like 4.10's, might make it easier for my daughter to learn how to drive, also plan on having these on the '77 granada. and until i get some better rubber on the stock rims for my wife's S-10 blazer, thay will probly spend some time there and make the 3.42 gearing in it more likeable when towing the trailer. 2 are polished up in this pic and the other 2 were awaiting poilish. all done now and looking like chrome.