<VV> LM front suspension shims

[corvairduval at cox.net]

It was a very common procedure to use shims on the upper control arm bolts
to do camber and caster. Yes, both, caster by varying the thickness of the
shims front to back, camber by changing front and rear shim by the same
thickness.

So, if this alignment was done in 65, then the technician may have never
seen the lower camber bolt before.

Even my 94 to 96 GM full sized wagons still use upper control arm shims.

Frank DuVal

Original email:
-----------------
From: Harry Yarnell \(Verizon\) via VirtualVairs virtualvairs at corvair.org
Date: Mon, 02 Feb 2015 13:14:19 -0500
To: jamescuneo at hotmail.com, 62vair at gmail.com, virtualvairs at corvair.org
Subject: Re: <VV> LM front suspension shims


...or the lower camber bolt was frozen, and the alignment tech used shims
instead.
...or the alignment tech didn't know about the camber bolt, and used shims.
..just musing on a rainy day...


-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of
James Cuneo via VirtualVairs
Sent: Monday, February 02, 2015 1:02 PM
To: MarK Durham; virtualvairs at corvair.org
Subject: Re: <VV> LM front suspension shims

Thanks Mark, That's how I'm leaning. I guess shims could have been added
during a previous alignment. But why, when it is so much easier to adjust
camber with lower adjuster?Thank you, Jim

Date: Mon, 2 Feb 2015 09:34:17 -0800
Subject: Re: <VV> LM front suspension shims
From: 62vair at gmail.com
To: jamescuneo at hotmail.com

Jim, when I did my em front end, I put all the shims back and used that as a
starting point. Just know that if you replaced all the bushings and ball
joints, that adjustment may no longer be accurate if an adjustment was done
in the past. 

Mark Durham

Hauser ID

62 Coupe Red/Red
On Feb 2, 2015 9:15 AM, "James Cuneo via VirtualVairs"
<virtualvairs at corvair.org> wrote:
Hello, I am rebuilding a lm front suspension.Upon dis assembly of the
drivers side upper a arm, I found two shims between cross member and bushing
shaft.Both were the same thickness. I think these were installed at the
factory since front end has not been in a car since the early 70's.My guess
is they were used to adjust for some manufacturing tolerance for
camber.Question, should I re assemble with shims or, rely on lower arm
adjustment only to adjust camber?Thanks in advance,Jim CuneoNorcal Corsa

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