Originally Posted by 232stang
i heard wheels spacers are dangerous but i dont know from experience maybey i was malinformed
cheap aluminum spacers are not a good idea, you're right. however, the more expensive quality spacers are heat tempered (so as not to warp when heated by the wheels, requiring constant tightening) and have studs coming out of them. you screw the spacer onto your existing studs and new ones for your make/model will be used to actually put on your wheel. these have shown to be good in all situations, even autox and open track, spacers are better than shimming axles. of course, a wider rear diff housing would be ideal but that's rarely a practical option. but this is mostly opinion and conjuncture from hanging around people that have done this and not from me myself doing this.