[DeTomaso] Adjustable upper rear A-arms

Larry - Ohio Time Larry at ohiotimecorp.com
Thu Dec 3 19:05:34 EST 2015



<< are bad?>>

To the bone...


Larry (very bad) - Cleveland



-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Kirby
Schrader
Sent: Thursday, December 03, 2015 6:56 PM
To: David Nunn
Cc: Mike Drew; detomaso at poca.com; Ken Green
Subject: Re: [DeTomaso] Adjustable upper rear A-arms

So three cars I'm associated with are bad?

????


> On Dec 3, 2015, at 17:44, David Nunn <dnunn at telus.net> wrote:
> 
> Ken wrote: "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?"
> 
> About 20 years ago, Ted Mitchell and Dennis Quella had a lively
discussion,
> via the POCA newsletter, about adjustable rear upper control arms. If I
> remember correctly, it all began when Ted wrote that adjustable rear upper
> control arms, that replace the ball joint with a rod end (AKA: Heim
joint),
> were a poor design because it placed the rod end in single shear. Dennis
> took obvious offense to Ted's remark which Ted defended aggressively! He
> (Ted) went on to write, the proper way to make an adjustable upper rear
> control arm was to replace the chassis mount bushings with adjustable,
> Teflon lined rod ends and leave the ball joint alone. Such a design places
> the rod ends in double shear, which is correct from an engineering
> standpoint. Such a design also removes any bind from the rear suspension
by
> allowing the ball joint to be perfectly aligned with the tapered hole in
the
> upright. This is accomplished by lengthening and/or shortening the rod
ends.
> The entire control arm can also be moved forward or backward by
> adding/removing the shims that position the rod ends in the chassis
mounts.
> 
> 
> 
> _______________________________________________
> 
> 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.


_______________________________________________

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.





More information about the DeTomaso mailing list