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From: jeepcj2a@fluke.UUCP (Dale Chaudiere)
Newsgroups: net.auto
Subject: Re: Do 4WDs wear front tires more?
Message-ID: <979@vax1.fluke.UUCP>
Date: Fri, 19-Apr-85 10:35:21 EST
Article-I.D.: vax1.979
Posted: Fri Apr 19 10:35:21 1985
Date-Received: Sat, 20-Apr-85 08:04:07 EST
References: <542@ihu1h.UUCP>
Distribution: net
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 20

> I have noticed the front tires on my 1983 full sized Bronco wearing more
> on the outside (of the vehicle) than the inside. This was after 15,000
> miles of driving in town with the front hubs mostly unlocked. I
> suspected the "toe in" to be set wrong, so I scheduled an alignment.
> They reported the front end was within factory specs and then tried to
> sell me new shocks. I declined.
> 
> The man in the pit told me that this is common with 4WD. Is this true?
> 
> Dave Miller ihu1h!dave x3791

Yes, I believe your front axle is the type that allows each side to move up
and down independently via an inboard pivot point (not true independent
suspension).  Like 4WD vehicles with solid axles this does not allow constant
"proper" contact of tire surface with road during turns and over bumps.
Result:
difference in tire wear than rear or 2WD with independent suspension.  2WD and
some of the smaller 4WD use A arms to keep the contact correct.

Hint: rotate