Hey All! I would like to know if the front wheel bearings of my 90 XJ could be swapped out with those of a Grand Cherokee or other model, in order to use the later model 16" 5 on 5 steel wheels. I want to avoid using adapters on the front because I've heard it isn't safe. I will use adapters on the rear. Also, will there be back spacing issues if adapters are'nt used up front. Thanks for any help!