[DeTomaso] Adjustable upper rear A-arms

Larry Stock larrys at panteraparts.com
Thu Dec 3 00:16:48 EST 2015


That is true Ken, I could post a photo of the double V anti bind design we
use, but not on the Forum mode.

From:  Ken Green <kenn_green at yahoo.com>
Reply-To:  Ken Green <kenn_green at yahoo.com>
Date:  Wednesday, December 2, 2015 at 8:13 PM
To:  Larry Stock <Larrys at PanteraParts.com>, "MikeLDrew at aol.com"
<MikeLDrew at aol.com>, "tonydigi at optonline.net" <tonydigi at optonline.net>,
"detomaso at poca.com" <detomaso at poca.com>
Subject:  Re: [DeTomaso] Adjustable upper rear A-arms

I have a vague recollection that some of the modified upper rear control
arms included adjustment to reduce possible binding in the rear suspension
because the upper ball joint may not exactly line up with he top of the
carrier?  It seems like a control arm with adjustable frame ends could be
adjusted to align the ball joint with the carrier?

Ken

  
 
 
 

  From: Larry Stock <larrys at panteraparts.com>
 To: MikeLDrew at aol.com; tonydigi at optonline.net; detomaso at poca.com
 Sent: Wednesday, December 2, 2015 7:36 PM
 Subject: Re: [DeTomaso] Adjustable upper rear A-arms
  
 

You turn the adjustable heims out to your approximate length and then use
the regular lower shims to adjust the camber and toe in as you would
regularly. It is really pretty simple.

On 12/2/15, 7:26 PM, "DeTomaso on behalf of Mike Drew via DeTomaso"
<detomaso-bounces at poca.com on behalf of detomaso at poca.com> wrote:

>   In a message dated 12/2/15 5:13:26 PM, tonydigi at optonline.net writes:
>
>     I'm ready to finally compensate for that excessive rear camber my
>     car has.
>     Anyone have good used set they want to sell?
>
>   >>>I've suggested this before, but it bears repeating.
>   If you have excessive negative camber, you don't want, nor do you need,
>   ADJUSTABLE upper A-arms.  You only need LONGER A-arms.
>   The adjustable style have been around for 30 years or more.  They are
>   somewhat complicated to manufacture and incorporate expensive
>   components, which makes them cost an absolute fortune--figure close to
>   $700 for a pair.  But the spending only starts there.  Once they are
>   installed in the car, in order to make an adjustment you have to
>   disconnect them from the hub carrier, then turn the adjustable doohicky
>   in our out some number of turns, put it all back together again, hook
>   all the equipment up again, and re-measure.  It's a very
>   time-consuming, labor-intensive, and thus very expensive proposition.
>   On the other hand, fixed-length A-arms that are slightly longer can
>   deliver the desired result with no difficulty at all.  Just pop your
>   ball joint out of your stock units, swap them over, bolt them on (if
>   you have poly bushings they will transfer over easily, otherwise you'll
>   have to buy four new stock-style bushings and have them pressed in),
>   and then you simply adjust your alignment in the conventional manner.
>   These things are available from both Hall:
>   http://hallpantera.com/cgi-bin/p/awtp-product.cgi?d=hallpantera-inc&ite
>   m=22521
>   And Precision Pro-Formance:
>   http://www.precisionproformance.com/sc2020.php
>   Note that while they achieve the same thing in the same way, they
>   appear to be different designs.  Also note that the Precision
>   Proformance model is slightly more expensive AND requires you to
>   exchange your old units, which incurs shipping cost plus you lose your
>   old ones.
>   I've helped install Hall units on several cars, and they worked
>   absolutely great.
>   Having said all that, realize that the Hall/Precision Proformance
>   adjustable chassis stiffening kits can have a profound effect on wheel
>   alignment.  If you get too rambunctious expanding the lower rear piece,
>   you can create negative camber by spreading the main chassis rails
>   apart from one another.  And by the same token, if you get aggressive
>   with the upper portion, you can potentially dial out all of the sag
>   that may have set into your chassis and return it to its original
>   location (although if one is too aggressive, paint damage could
>   possibly result?)
>   So before you spend money on expensive (and expensive to set up)
>   adjustable upper A-arms, first look at your existing chassis components
>   to see if you have accidentally manufactured your problem, or could
>   correct it.  If not, then seriously consider taking the simple and
>   inexpensive route by using longer-length, fixed A-arms?
>   Let us know how it turns out!
>   Mike
>_______________________________________________
>
>Detomaso Forum Managed by POCA
>Posted emails must not exceed 1.5 Megabytes
>DeTomaso mailing list
>DeTomaso at poca.com
>http://poca.com/mailman/listinfo/detomaso_poca.com
>
>To manage your subscription (change email address, unsubscribe, etc.) use
>the links above.






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-------------- next part --------------
   That is true Ken, I could post a photo of the double V anti bind design
   we use, but not on the Forum mode.

   From: Ken Green <[1]kenn_green at yahoo.com>
   Reply-To: Ken Green <[2]kenn_green at yahoo.com>
   Date: Wednesday, December 2, 2015 at 8:13 PM
   To: Larry Stock <[3]Larrys at PanteraParts.com>, "[4]MikeLDrew at aol.com"
   <[5]MikeLDrew at aol.com>, "[6]tonydigi at optonline.net"
   <[7]tonydigi at optonline.net>, "[8]detomaso at poca.com"
   <[9]detomaso at poca.com>
   Subject: Re: [DeTomaso] Adjustable upper rear A-arms

   I have a vague recollection that some of the modified upper rear
   control arms included adjustment to reduce possible binding in the rear
   suspension because the upper ball joint may not exactly line up with he
   top of the carrier?  It seems like a control arm with adjustable frame
   ends could be adjusted to align the ball joint with the carrier?
   Ken
     __________________________________________________________________

   From: Larry Stock <[10]larrys at panteraparts.com>
   To: [11]MikeLDrew at aol.com; [12]tonydigi at optonline.net;
   [13]detomaso at poca.com
   Sent: Wednesday, December 2, 2015 7:36 PM
   Subject: Re: [DeTomaso] Adjustable upper rear A-arms
   You turn the adjustable heims out to your approximate length and then
   use
   the regular lower shims to adjust the camber and toe in as you would
   regularly. It is really pretty simple.
   On 12/2/15, 7:26 PM, "DeTomaso on behalf of Mike Drew via DeTomaso"
   <[14]detomaso-bounces at poca.com on behalf of [15]detomaso at poca.com>
   wrote:
   >  In a message dated 12/2/15 5:13:26 PM, [16]tonydigi at optonline.net
   writes:
   >
   >    I'm ready to finally compensate for that excessive rear camber my
   >    car has.
   >    Anyone have good used set they want to sell?
   >
   >  >>>I've suggested this before, but it bears repeating.
   >  If you have excessive negative camber, you don't want, nor do you
   need,
   >  ADJUSTABLE upper A-arms.  You only need LONGER A-arms.
   >  The adjustable style have been around for 30 years or more.  They
   are
   >  somewhat complicated to manufacture and incorporate expensive
   >  components, which makes them cost an absolute fortune--figure close
   to
   >  $700 for a pair.  But the spending only starts there.  Once they are
   >  installed in the car, in order to make an adjustment you have to
   >  disconnect them from the hub carrier, then turn the adjustable
   doohicky
   >  in our out some number of turns, put it all back together again,
   hook
   >  all the equipment up again, and re-measure.  It's a very
   >  time-consuming, labor-intensive, and thus very expensive
   proposition.
   >  On the other hand, fixed-length A-arms that are slightly longer can
   >  deliver the desired result with no difficulty at all.  Just pop your
   >  ball joint out of your stock units, swap them over, bolt them on (if
   >  you have poly bushings they will transfer over easily, otherwise
   you'll
   >  have to buy four new stock-style bushings and have them pressed in),
   >  and then you simply adjust your alignment in the conventional
   manner.
   >  These things are available from both Hall:
   >
   [17]http://hallpantera.com/cgi-bin/p/awtp-product.cgi?d=hallpantera-inc
   &ite
   >  m=22521
   >  And Precision Pro-Formance:
   >  [18]http://www.precisionproformance.com/sc2020.php
   >  Note that while they achieve the same thing in the same way, they
   >  appear to be different designs.  Also note that the Precision
   >  Proformance model is slightly more expensive AND requires you to
   >  exchange your old units, which incurs shipping cost plus you lose
   your
   >  old ones.
   >  I've helped install Hall units on several cars, and they worked
   >  absolutely great.
   >  Having said all that, realize that the Hall/Precision Proformance
   >  adjustable chassis stiffening kits can have a profound effect on
   wheel
   >  alignment.  If you get too rambunctious expanding the lower rear
   piece,
   >  you can create negative camber by spreading the main chassis rails
   >  apart from one another.  And by the same token, if you get
   aggressive
   >  with the upper portion, you can potentially dial out all of the sag
   >  that may have set into your chassis and return it to its original
   >  location (although if one is too aggressive, paint damage could
   >  possibly result?)
   >  So before you spend money on expensive (and expensive to set up)
   >  adjustable upper A-arms, first look at your existing chassis
   components
   >  to see if you have accidentally manufactured your problem, or could
   >  correct it.  If not, then seriously consider taking the simple and
   >  inexpensive route by using longer-length, fixed A-arms?
   >  Let us know how it turns out!
   >  Mike
   >_______________________________________________
   >
   >Detomaso Forum Managed by POCA
   >Posted emails must not exceed 1.5 Megabytes
   >DeTomaso mailing list
   >[19]DeTomaso at poca.com
   >[20]http://poca.com/mailman/listinfo/detomaso_poca.com
   >
   >To manage your subscription (change email address, unsubscribe, etc.)
   use
   >the links above.
   _______________________________________________
   Detomaso Forum Managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
   [21]DeTomaso at poca.com
   [22]http://poca.com/mailman/listinfo/detomaso_poca.com
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.

References

   1. mailto:kenn_green at yahoo.com
   2. mailto:kenn_green at yahoo.com
   3. mailto:Larrys at PanteraParts.com
   4. mailto:MikeLDrew at aol.com
   5. mailto:MikeLDrew at aol.com
   6. mailto:tonydigi at optonline.net
   7. mailto:tonydigi at optonline.net
   8. mailto:detomaso at poca.com
   9. mailto:detomaso at poca.com
  10. mailto:larrys at panteraparts.com
  11. mailto:MikeLDrew at aol.com
  12. mailto:tonydigi at optonline.net
  13. mailto:detomaso at poca.com
  14. mailto:detomaso-bounces at poca.com
  15. mailto:detomaso at poca.com
  16. mailto:tonydigi at optonline.net
  17. http://hallpantera.com/cgi-bin/p/awtp-product.cgi?d=hallpantera-inc&ite
  18. http://www.precisionproformance.com/sc2020.php
  19. mailto:DeTomaso at poca.com
  20. http://poca.com/mailman/listinfo/detomaso_poca.com
  21. mailto:DeTomaso at poca.com
  22. http://poca.com/mailman/listinfo/detomaso_poca.com


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