Studs will break off the vehicle if the wrong spacers are used for the vehicles hub/wheel design. Hub-centric vs. lug centric.
I can't say specifically about Gen. 2 GVs, but for instance, my sami is Lug-Centric, but my Rubicon Heep is Hub-centric. The sami has a flush face on the drum, so the wheel studs are designed to carry the vehicle weight. The Jeep on the other hand has a machined lip on the hub that fits into the wheel, this interface carries the load and NOT the lugs.
I've seen the aftermath pics of the lug-centric spacers used incorrectly on a hub-centric jeep, NOT pretty after the Jeep's wheel studs (not the spacer's studs) broke off w/o warning doing only 45mph down the road (good thing the guy had a full cage). And no, they were not Spidertrax, and yes, everything was properly torqued.