[DeTomaso] The Bushing Debate - Stock v Polly
Charles Engles
cengles at cox.net
Tue Jun 1 11:00:57 EDT 2021
Dear Mike,
My experience on both of my Panteras is the same as Will's.
Warmest regards, Chuck Engles
PS: in the process of changing one Pantera to poly and then driving the other Pantera with stock bushings, I perceived no change in ride quality and moderate improvement in handling.
-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Will Kooiman
Sent: Tuesday, June 01, 2021 9:42 AM
To: Julian Kift; Mike & Elizabeth; detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] The Bushing Debate - Stock v Polly
I have poly bushings everywhere, and they don’t squeak.
The sway bar bushings used to squeak - loudly. I tried grease, which didn't work. I removed the coating from the sway bar where the poly bushings came in contact with the bar. That did the trick.
I don't recall if they are powder coated or if it's just heavy paint, but poly bushings on that coating didn't work at all.
I didn't have to do anything with the sphere ball bushings.
On 5/29/21, 11:49 PM, "DeTomaso on behalf of Julian Kift" <detomaso-bounces at server.detomasolist.com on behalf of julian_kift at hotmail.com> wrote:
* What are the pros/cons of original brass/rubber versus poly
bushings on the Pantera?
A: The rubber in the bushings is bonded in the outer and inner so it
provides a sprung dampening effect. Poly bushings are not all made
equal, so there is variation. IMO the oem rubber bushings ride better
for street and don't squeak.
* Any problems with putting stock bushings in the rear and
leaving the poly in the front to keep the offset bushings for improved
castor?
A: If you are just doing that to get desired caster there are other
ways to achieve the goal and have the car equally bushed on all four
corners.
* Will shaving the upper ball joints on one side achieve the
same offset as the offset poly bushing set and allow me to go back to
stock bushings in front with improved castor?
A: You can only safely shave 0.1" off the ball joint without going into
the inner cavity. If I recall the geometry correctly, the 0.1" will
get your roughly one degree, but should be easy to compare to your
offset bushing and what length they are offset and gain you.
* Any other considerations that I'm not bringing up here . . .
A: Having the A-arms modified will easily get you the 4.5 degrees that
are ideal for a narrow body.
Julian
__________________________________________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
Mike & Elizabeth <mbefthomas2 at gmail.com>
Sent: Saturday, May 29, 2021 9:27 AM
To: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Subject: [DeTomaso] The Bushing Debate - Stock v Polly
OK, I'm at that decision point in rebuilding my suspension as part of
the
restoration. I know this subject has been debated a few times in the
past
but I'll throw it out there again for fresh cussing and discussing. I
have
a few questions around the subject.
* What are the pros/cons of original brass/rubber versus poly
bushings
on the Pantera?
* Any problems with putting stock bushings in the rear and
leaving the
poly in the front to keep the offset bushings for improved castor?
* Will shaving the upper ball joints on one side achieve the same
offset as the offset poly bushing set and allow me to go back to stock
bushings in front with improved castor?
* Any other considerations that I'm not bringing up here . . .
Thanks in advance for you input and I hope you all have a great holiday
weekend.
Mike Thomas
Panteras Northwest
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