Mark,
I have seen backing plates but at some time companies just went to offset
washers.
I bought Cragars in 1988 and they used offset washers. I used have a car
with real small rear wheel openings and it had massive tires filling the
wheel wells and the unilug/offset washer idea really sucked.
I had to rotate the tires while balancing/centering the rims on my knees and
ended up hand threading all the lugs in until they were snug. The tire store
I bought them from just drove the lugs on with an impact wrench. The first
winter I took the tires off I found 5 lugs that I could not remove. They had
stripped the studs plus damaging the chrome on the wheels when the offset
washers were trying to spin. Of course they denied it saying "well gee
anyone could have done that."
McGard makes the washers needed...and lug nuts...and wheel locks also if you
are inclined...
http://www.mcgard.com
Paul
>From: CoolVT@aol.com
>Reply-To: CoolVT@aol.com
>To: tigers@autox.team.net
>Subject: (no subject)
>Date: Sun, 25 Sep 2005 10:48:05 EDT
>
>Paul
>The Crager unibolts are as you describe. Apparently in the 70's they used
>a
>backing plate for a chosen bolt pattern. My late 80's did not use a
>backing
>plate, but required special lug nuts that had a narrow end that fit through
>the elongated holes. Without these lug nuts or the lug nuts to fit a
>particular
>application, my wheels would be worthless to anyone.
>Mark L.
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