I'm not on ANY side here, I'm just bored, and looking for someone to help. If it were me, I would DEFINETLY get the offset rims, not the spacers. They make offset rims for a reason. The center of the wheel, is the center, no matter what the backspacing is. The backspacing, is the distance from the outside of the rim, to where it is secured by lugnuts to the axle. The center is the center. If anything, spacers would be the thing that puts stress on the wheel. I don't really understand how a wheel could put stress on itself, but whatever. If you go with a spacer set-up, I hope you have a thick wallet. Just think of all the things you could buy instead of putting in new axle shafts, lugs, and then finally realizing you need more backspacing on your wheels, and buying a new set of wheels.
91 XJ Limited - RE 5.5" XD, 32x9.50 TSL's, 4.0 HO, disconnects, other good stuff
94 ZJ 5.2 Limited - 6.5" Teraflex lift, Clayton Long Arms, disconnects, 37x12.50 SSR's, Hummer Beadlocks, and more good stuff