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07-03-2011, 05:29 PM
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#1 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Polyurethane bushings/mounts
I am replacing all my rubber suspension components, body mounts, trans, and motor mounts with polyurethane(PST) components. Is this a good or bad idea? Should i just do rubber?
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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07-03-2011, 06:32 PM
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#2 |
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Registered User
Join Date: Sep 2009
Location: ottawa,canada
Posts: 4,550
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Re: Polyurethane bushings/mounts
very good idea.....gets rid of the sloppy, worn out, rubber crap...just grease them up good!
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my build threads '86 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415628 '67 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=635078 '63 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=674682 |
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07-03-2011, 10:40 PM
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#3 |
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Registered User
Join Date: Jun 2004
Location: Spartanburg, SC
Posts: 1,963
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Re: Polyurethane bushings/mounts
IMO dont do the engine and trans mounts. I put them on my old S10 and the vibration at idle was crazy. For a daily driver it was very annoying, esp with the A/C on....
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Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded  '03 burb. Family cruiser http://upstategmtrucks.com/ |
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07-04-2011, 02:21 PM
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#4 |
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Registered User
Join Date: Sep 2010
Location: los angeles
Posts: 1,134
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Re: Polyurethane bushings/mounts
I think they belong in the sway bar bushings... anywhere else, I think they are overkill. New rubber is probably better,
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07-05-2011, 04:58 AM
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#5 |
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Registered User
Join Date: Dec 2009
Location: Epping, NH
Posts: 605
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Re: Polyurethane bushings/mounts
I replaced all my cab mounts with poly on one of the trucks I built, a 78 or 79. It stiffened the truck up considerably, was so harsh I hated it and replaced it with GM rubber after 2 weeks. When I took them back out one of the radiator support mounts was split nearly in two. Rubber makes it ride like a new truck, poly makes it feel like theres no suspension under you. And I'm not particularly picky about a smooth ride. So thumbs down from me.
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1982 Chevy K30 CCLB fleetside. Formerly a cab and chassis, now a fleetside dually with the rear wheels tucked underneath. 454/th400/np205/C14/D60, 6/4 inch LIFT, not drop. |
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07-05-2011, 12:44 PM
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#6 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: Polyurethane bushings/mounts
Polygraphite bushings work great. I have them on my triuck. Strength of poly and softness of rubber! Use them you like them.
Posted via Mobile Device Posted via Mobile Device |
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07-05-2011, 02:35 PM
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#7 |
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Registered User
Join Date: Feb 2008
Location: Houston
Posts: 970
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Re: Polyurethane bushings/mounts
I have the Polygraphite bushings on my upper and lower control arms and swaybar. I dont think it can hurt.
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2014 LTZ Z71 Silverado 82 C15 LQ4/4L80E Conversion 78 Suburban build (SOLD) 83 4x4 Suburban(SOLD) 82 C15 (my first truck) |
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07-05-2011, 02:52 PM
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#8 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: Polyurethane bushings/mounts
I am going to go polygraphite on the suspension and new rubber mounts on the cab, trans and motor
__________________
USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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07-06-2011, 02:37 AM
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#9 |
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Registered User
Join Date: Jun 2004
Location: Spartanburg, SC
Posts: 1,963
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Re: Polyurethane bushings/mounts
^^^ best idea IMO....
FYI energy suspension's black bushings are polygraphite as well. The red ones are just straight poly.... Posted via Mobile Device
__________________
Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/ |
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