The only way I'd be comfortable with a spacer is if the lug bolts go through both the spacer and the wheel- - - -and only then if they're NASCAR-rated oversize bolts, maybe 5/8" or larger instead of OEM diameter.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!