I ran 17's last winter with 2" spindles but it took quite a bit of grinding after I cut the bolts flush with the nuts. But anything less than 20's on a 2/4 drop is just not cool anyway lol.If you use spindels then you will need 20" rims or you have to cut the bolts and even then it's very close. I did a 4 4 and have 20" rims. If you use the drop keys then any size will work. View attachment 187217