[DeTomaso] The Bushing Debate - Stock v Polly

[Will Kooiman]

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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