i've seen it done a lot so i haven't thought to ask.  but just incase...does using silverado or escalade rims on an isuzu truck require any special spacers or any other stuff to make them fit right?  i got my 16" silverado rims and my dad brought home some 225/60 tires to use for now so i'm gonna be using them.  but is there anything i need to know before using them?