I have found a set of 18" rockstar rims that are 5 lug universal. I know that the jeeps are 5 lugs so would these work?

 

If they actually are universal they will have 10 lug holes, 5 on 5 which is what the jeep needs and 5 on 4.5 or 5 on 5.5 or 5 on 4.75 , can't be all so really need to make sure, will only be 2 of the above

 

Lots of the universal bolt patterns were either for dodge 5x5.5 and either 5x139mm for the toyota tundra's. Sometimes they did make them 5x5.5 and 5x5 so you could be lucky. Either measuse the bolt pattern yourself or get him to do it for you to make sure! Good luck