[DeTomaso] Chassis

B Hower b.hower3400 at yahoo.com
Sat Aug 19 16:00:12 EDT 2017 

FWIW, I have some brand new offset bushings here. New spindles were provided and length is ~1.847" while length of bushings (two haves over spindle)are1.780. Provided instructions tell you to lightly scuff ID of A-Arm to prevent bushing from rotating inside A-Arm. To lube outer diameter of spindles/inside diameter of bushings. 
Also to clean up inside of mounting tabs, lube tab inner surface and to check after installation that when A-Arm is rotated the bushing moves with it. The length of spindle is designed to be clamped between tabs with bushing rotating between tabs and rotating on spindle. Torque 58-60 lbs
Any one wanting more on this contact me off forum.
Have a great day and smile 
Bud #3400 ( Drive it like there is no tomorrow -- for there may not be ! )

      From: Stephen Nelson <steve at snclocks.com>
 To: "'Joseph F. Byrd, Jr.'" <byrdjf at embarqmail.com>; detomaso at server.detomasolist.com 
 Sent: Saturday, August 19, 2017 9:02 AM
 Subject: Re: [DeTomaso] Chassis
   
Wow - that is a novel thought - leave suspension bolts looser than spec'd by
the manufacturer.  Wow.  If I were you I would talk to Dennis at Pantera
Performance.  And then I'd polish the inside of the A-arm ends where the
bushings are meant to rotate and tighten to design specs.

Just my thoughts...

Stephen

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Joseph F. Byrd, Jr.
Sent: Saturday, August 19, 2017 6:01 AM
To: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Chassis

I should not question the design of others for a case where I have no
experience, BUT my observation of a design that allows structural members (
the through bolt and side tabs) to have freedom would eventually allow the
bolt to "beat out" the hole in the tabs and "notch" the bolt shank.

The use of a sleeve so the bolt can be securely tighten, allowing rotation
between sleeve/bushing AND limiting the amount of compression of the bushing
faces.  Even this improvement still uses a structural member (the tabs) to
be a wear surface.  Adding flange faces to the sleeves would then contain
all "wearing" to replaceable components.

Joe

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of John McKee
Sent: Saturday, August 19, 2017 1:51 AM
To: 'Mike Drew'; 'Larry Weston'
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Chassis

I am not certain what the design intent of the stock rubber bushing was but
I think the poly bushings are intended to act like a thrust bearing if I
understand that term correctly. The suspension mounting tabs pinch down on
the radial end surface of the bushing something like an old time friction
shock. Yes the bushing could spin on the shaft but the main movement or path
of least resistance should be at the ends.
I had Dick Drenske make me a set of bushings out of Delrin and he told me to
coat the ends with anti-seize as that was the surface you want to have
moving.  Much like the shocks, you do not want to over tighten the tabs so
he had me use new nylock nuts and tighten to 20 ft.lbs. I also polished the
mounting tab surfaces smooth and gave them a light coat of sacrificial paint
to keep the rust off before adding a liberal amount of anti-seize.
I have yet to complete my car and put any miles on them but I know he had
made Delrin bushings for his convertible Longchamp (beautiful car) and he
also put a set on the front end of Dawg's Phoenix.

John

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-------------- next part --------------
   FWIW, I have some brand new offset bushings here. New spindles were
   provided and length is ~1.847" while length of bushings (two haves over
   spindle)are1.780. Provided instructions tell you to lightly scuff ID of
   A-Arm to prevent bushing from rotating inside A-Arm. To lube outer
   diameter of spindles/inside diameter of bushings.
   Also to clean up inside of mounting tabs, lube tab inner surface and to
   check after installation that when A-Arm is rotated the bushing moves
   with it. The length of spindle is designed to be clamped between tabs
   with bushing rotating between tabs and rotating on spindle. Torque
   58-60 lbs
   Any one wanting more on this contact me off forum.
   Have a great day and smile *:) happy
   Bud #3400 ( Drive it like there is no tomorrow -- for there may not be
   ! )
     __________________________________________________________________

   From: Stephen Nelson <steve at snclocks.com>
   To: "'Joseph F. Byrd, Jr.'" <byrdjf at embarqmail.com>;
   detomaso at server.detomasolist.com
   Sent: Saturday, August 19, 2017 9:02 AM
   Subject: Re: [DeTomaso] Chassis
   Wow - that is a novel thought - leave suspension bolts looser than
   spec'd by
   the manufacturer.  Wow.  If I were you I would talk to Dennis at
   Pantera
   Performance.  And then I'd polish the inside of the A-arm ends where
   the
   bushings are meant to rotate and tighten to design specs.
   Just my thoughts...
   Stephen
   -----Original Message-----
   From: DeTomaso [mailto:[1]detomaso-bounces at server.detomasolist.com] On
   Behalf
   Of Joseph F. Byrd, Jr.
   Sent: Saturday, August 19, 2017 6:01 AM
   To: [2]detomaso at server.detomasolist.com
   Subject: Re: [DeTomaso] Chassis
   I should not question the design of others for a case where I have no
   experience, BUT my observation of a design that allows structural
   members (
   the through bolt and side tabs) to have freedom would eventually allow
   the
   bolt to "beat out" the hole in the tabs and "notch" the bolt shank.
   The use of a sleeve so the bolt can be securely tighten, allowing
   rotation
   between sleeve/bushing AND limiting the amount of compression of the
   bushing
   faces.  Even this improvement still uses a structural member (the tabs)
   to
   be a wear surface.  Adding flange faces to the sleeves would then
   contain
   all "wearing" to replaceable components.
   Joe
   -----Original Message-----
   From: DeTomaso [mailto:[3]detomaso-bounces at server.detomasolist.com] On
   Behalf
   Of John McKee
   Sent: Saturday, August 19, 2017 1:51 AM
   To: 'Mike Drew'; 'Larry Weston'
   Cc: [4]detomaso at server.detomasolist.com
   Subject: Re: [DeTomaso] Chassis
   I am not certain what the design intent of the stock rubber bushing was
   but
   I think the poly bushings are intended to act like a thrust bearing if
   I
   understand that term correctly. The suspension mounting tabs pinch down
   on
   the radial end surface of the bushing something like an old time
   friction
   shock. Yes the bushing could spin on the shaft but the main movement or
   path
   of least resistance should be at the ends.
   I had Dick Drenske make me a set of bushings out of Delrin and he told
   me to
   coat the ends with anti-seize as that was the surface you want to have
   moving.  Much like the shocks, you do not want to over tighten the tabs
   so
   he had me use new nylock nuts and tighten to 20 ft.lbs. I also polished
   the
   mounting tab surfaces smooth and gave them a light coat of sacrificial
   paint
   to keep the rust off before adding a liberal amount of anti-seize.
   I have yet to complete my car and put any miles on them but I know he
   had
   made Delrin bushings for his convertible Longchamp (beautiful car) and
   he
   also put a set on the front end of Dawg's Phoenix.
   John
   _______________________________________________
   Detomaso Email List is not managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
   [5]DeTomaso at server.detomasolist.com
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   message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

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