David, just swap the rims over and then use the allow wheel lug bolts in
front and the alloy wheel lug nuts in rear.  That is it.  I have heard so
many people say that the rear studs need to be longer for the alloys.
However when I had some time a few months ago, I measured the rear studs on
my '91 Carat (stock alloys) and then on my '84 (stock steel).  The lengths
were the same!  So forget about rear studs, swap over the rims and the
hardware and you are good to go.

Thanks,
Ken Wilford
http://www.vanagain.com
John 3:16

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