Date: Thu, 4 Jun 1998 12:12:45 -0600
From: "Ronald M Friesen" <>
Subject: Re: My 900 ('90) is vibrating <35765796.146759288nopsam168.0.1>...
>Hi all,
>The front of my 900 ('90) is vibrating between 90 and 110 Kmph.
>In 4th I drive up to 90 and then the vibrating starts. In 5th it gets
>worse, at 110 Kmph it's gone...
>I changed the tires, but that didn't help at all.

Yes, sounds like the problem I had with my '87 900S.  It was the inner
universal joint gone bad.  Acted exactly like yours until it got worse.  We
first were told by Saab techs that the "transmission driver" (look in a Saab
shop manual) had grooves worn in it where the inner u-joint ran but it was
the inner u-joint.  My son & I replaced it in a couple hours.


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