upper control arm bushing
08-23-2017, 04:18 PM
#1
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upper control arm bushing
I'm replacing the control arm bushings in my 91 22re 4x4 pickup with the Energy Suspension poly bushings. My question is about the shorter bushing sleeve on the upper control arm, I believe it's the rear one. Mine consisted of two pieces, a thicker inner sleeve and a thin outer one with a flange on it, and there's a bushing in between them. The bushing set I got doesn't have a replacement for the one between these two pieces. Is it meant to be reused, or should I not have separated these two parts? It got pretty chewed up while I was pressing things out so I can't reuse it regardless. I have a lathe so I could easily make a new one piece sleeve, I don't see any reason why this would be a problem but I suppose there was a reason for making it two pieces in the first place. Any thoughts?
08-24-2017, 05:27 PM
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Nevermind, had a lapse of reason there. I'm assuming that bushing has a thin steel core unlike the other ones, just need to use the inner part. At first I just counted how many sleeves I had vs. the number of bushings
Last edited by ianD; 08-24-2017 at 05:29 PM.
08-24-2017, 08:19 PM
#4
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If I recall
The OEM bushings are BONDED rubber bushings.
There is an OUTER metal shell
There is an INNER metal "spacer"
The rubber is BONDED to both (at least in new form)
Thats why they want you to torque the bushings WHEN THERE IS WEIGHT ON THE SUSPENSION.
i,e, you are to put the arms on, put the wheels back on, lower the truck so its at ride height, to the alignment and THEN torque
The rubberm being bonded to both parts, acts like a torsion spring....
The aftermarket ones don't doe that
They RE-USE the outer shells and sometimes the inner sleeve
So the bushing actually ROTATES and thus "wears"
So they squeak and go death spiral from there.....
Derlin bushings might be better - but will require far more servicing...... (as per what I have read anyways)
The OEM bushings are BONDED rubber bushings.
There is an OUTER metal shell
There is an INNER metal "spacer"
The rubber is BONDED to both (at least in new form)
Thats why they want you to torque the bushings WHEN THERE IS WEIGHT ON THE SUSPENSION.
i,e, you are to put the arms on, put the wheels back on, lower the truck so its at ride height, to the alignment and THEN torque
The rubberm being bonded to both parts, acts like a torsion spring....
The aftermarket ones don't doe that
They RE-USE the outer shells and sometimes the inner sleeve
So the bushing actually ROTATES and thus "wears"
So they squeak and go death spiral from there.....
Derlin bushings might be better - but will require far more servicing...... (as per what I have read anyways)
