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Home » Public Forums » GMCnet » Re: [GMCnet] front wheel spacers - True Trac
Re: [GMCnet] front wheel spacers - True Trac [message #83972] Mon, 10 May 2010 18:50 Go to next message
jayrabe is currently offline  jayrabe   United States
Messages: 509
Registered: June 2009
Location: Portland, OR
Karma: 0
Senior Member






OK, finally getting convinced that I need to install True Track. Some questions:

Charles posted some pix a few months ago (link below) that show two versions, one with a straight U-channel, and one with a curved channel. The ones at Applied seem to be straight. Are the curved ones available? What would be the advantages/tradeoffs?

Also, I've heard that maybe you don't need to put them on all 4 rear wheels, but really only need them on the mids. Comments/opinions?

Finally, KenH recommended that the alignment be "perfect" before starting installation. Only had the coach 5 mo, never had rear alignment done or checked, so no clue where I'm at. What's the risk of installing the TT when the alignment might be off?

Thanks for your help.

J
76 PB
Portland, OR



> From: gcw13@sbcglobal.net
> Date: Sun, 3 Jan 2010 19:22:34 -0600
> Subject: Re: [GMCnet] front wheel spacers - True Trac
>
> Pictures of a couple different true tracks installed.
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=5386
> Charles


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Re: [GMCnet] front wheel spacers - True Trac [message #83976 is a reply to message #83972] Mon, 10 May 2010 19:09 Go to previous messageGo to next message
Charles is currently offline  Charles   United States
Messages: 455
Registered: January 2004
Karma: 0
Senior Member
If alignment is off the true track will not correct the problem
and you might have trouble installing it. I know of no
advantage to the curved TT other than it is heavier but the
bearing used with them is not a load bearing, bearing, like
the ones Jim K sells. You can kind of check rear wheel
alignment yourself with a 6 foot straight edge laid
against the wheels and scale from it to the frame.
Dimension should be equal on both ends of the straight
edge and the straight edge should touch both the front
and back side of both tires. If you have a laser you can
set it up parallel to the frame and scale to the front and
back sides of both wheels. Both rear wheels should be
parallel with the frame. No Toe IN or OUT. As for Camber
I don't worry about that. Some do and they will pipe in.
Charles
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Charles Wersal
Duncanville, Texas
26 foot 1975 Glenbrook
Pandora's Box

Re: [GMCnet] front wheel spacers - True Trac [message #83983 is a reply to message #83972] Mon, 10 May 2010 19:48 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Jay,

To demonstrate that I have an acute grasp on the obvious you also need to
make sure your bogie pins are in good shape before you check or align the
bogies.

Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jay Rabe
Sent: Tuesday, 11 May 2010 9:50 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] front wheel spacers - True Trac

OK, finally getting convinced that I need to install True Track. Some
questions:

Charles posted some pix a few months ago (link below) that show two
versions, one with a straight U-channel, and one with a curved channel. The
ones at Applied seem to be straight. Are the curved ones available? What
would be the advantages/tradeoffs?

Also, I've heard that maybe you don't need to put them on all 4 rear
wheels, but really only need them on the mids. Comments/opinions?

Finally, KenH recommended that the alignment be "perfect" before starting
installation. Only had the coach 5 mo, never had rear alignment done or
checked, so no clue where I'm at. What's the risk of installing the TT when
the alignment might be off?

Thanks for your help.

J
76 PB
Portland, OR


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] front wheel spacers - True Trac [message #83994 is a reply to message #83983] Mon, 10 May 2010 20:36 Go to previous message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
The curved unit is better as it can maintain control through the whole
range of movement.
The guys in Texas explained to me that the TRUE TRACK is effect when
your traveling on a fairly level road.
We produced the ones with the curved track, but found that the
advantages were not there and people did not want to pay the added
cost.

On Mon, May 10, 2010 at 5:48 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> Jay,
>
> To demonstrate that I have an acute grasp on the obvious you also need to
> make sure your bogie pins are in good shape before you check or align the
> bogies.
>
> Regards,
> Rob Mueller
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jay Rabe
> Sent: Tuesday, 11 May 2010 9:50 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] front wheel spacers - True Trac
>
> OK, finally getting convinced that I need to install True Track. Some
> questions:
>
>   Charles posted some pix a few months ago (link below) that show two
> versions, one with a straight U-channel, and one with a curved channel. The
> ones at Applied seem to be straight. Are the curved ones available? What
> would be the advantages/tradeoffs?
>
>   Also, I've heard that maybe you don't need to put them on all 4 rear
> wheels, but really only need them on the mids. Comments/opinions?
>
>   Finally, KenH recommended that the alignment be "perfect" before starting
> installation. Only had the coach 5 mo, never had rear alignment done or
> checked, so no clue where I'm at. What's the risk of installing the TT when
> the alignment might be off?
>
> Thanks for your help.
>
> J
> 76 PB
> Portland, OR
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
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>



--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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