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> Rear Trailing Arm Bushings question
Bates
post Mar 15 2018, 08:58 AM
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I'm replacing the rear bushings and want to allow lubrication via grease fitting.

Do the inner diameter of the bushings pivot on the shaft or do the trailing arms pivot on the outer diameter of the bushings?

Bushings seem tighter on the shaft, and that surface area is much smaller than the o.d.

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Bates
post Mar 15 2018, 09:15 AM
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After 20 searches I found the answer;
Bushings are fixed to the trailing arms, vulcanized in place originally.

Install the bushings, ream i.d. of bushing with a sanding drum, use JB Weld to 'fix' bushes into trailing arm, install pivot shaft while epoxy is curing, then drill for grease fittings.

Thanks to posts by Eric Shea and Dave Darling
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malcolm2
post Mar 15 2018, 09:18 AM
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QUOTE(Ecke Liebhaber @ Mar 15 2018, 10:15 AM) *


Install the bushings, ream i.d. of bushing with a sanding drum, use JB Weld to 'fix' bushes into trailing arm, install pivot shaft while epoxy is curing, then drill for grease fittings.



Won't that be for the "plastic" bushings? I used Elephant Racing rubber and no JB Weld. JB Weld seemed to be a hack fix for slippery delrin bushings.
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Eric_Shea
post Mar 15 2018, 12:58 PM
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QUOTE(malcolm2 @ Mar 15 2018, 09:18 AM) *

QUOTE(Ecke Liebhaber @ Mar 15 2018, 10:15 AM) *


Install the bushings, ream i.d. of bushing with a sanding drum, use JB Weld to 'fix' bushes into trailing arm, install pivot shaft while epoxy is curing, then drill for grease fittings.



Won't that be for the "plastic" bushings? I used Elephant Racing rubber and no JB Weld. JB Weld seemed to be a hack fix for slippery delrin bushings.


Elephant requires all races be JB Welded in place. It's an awesome way to keep a solid bushing in place. Reversible as well.
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malcolm2
post Mar 15 2018, 01:53 PM
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QUOTE(Eric_Shea @ Mar 15 2018, 01:58 PM) *

Elephant requires all races be JB Welded in place. It's an awesome way to keep a solid bushing in place. Reversible as well.


I started with Rebel racing stuff. Sumpin' just was not right with them. And JB Weld was recommended. Not supplied tho. Not gonna hack my suspension parts. There was a 1/4" gap to fill with JB weld. That is a HACK. Maybe they sent the wrong stuff, but I returned them and moved on.

i got no races. I installed all rubber front and rear elephant bushings. They supplied the tools, all I added was some dish washing liquid, the end.

I don't plan to doing any racin'. https://www.elephantracing.com/porsche/911/...-gallery-365/0/
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