The kind of wheel spacers that I've seen most often used are similiar to the first kind. They're a plate but it doesn't bolt into place. The plate just fits onto your vehicle over your stock bolts, your bolts slide through it and your wheel still bolts to your same lug bolts which is why they're shorter. With the first ones in that link, they look like they bolt onto the jeep using your stock bolts and then have new bolts for the wheel to bolt onto. If this is the case, I'd think the bolts on your jeep would be too long and have to be shortened or your wheel will hit them. Kind of hard to explain, I hope you know what I mean.