Re: LCA poly bushings
[Re: cudaman1969]
#2389336
10/18/17 03:11 PM
10/18/17 03:11 PM
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Joined: Jan 2011
Posts: 15,859 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 15,859
Central Florida
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www.p-s-t.com used to advertise graphite infused poly bushings that were self lubricating. I don't know if they still do. It's been awhile since I've looked at their site.
Facts are stubborn things.
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Re: LCA poly bushings
[Re: cudaman1969]
#2389504
10/18/17 09:01 PM
10/18/17 09:01 PM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
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I Live Here
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I saw on here where someone was discussing these, where can I purchase some plus do they make new pins-bolts? I like the idea of them moving and greasing. Thanks I'd recommend PST polygraphite, I've used the Energy Suspension pieces, not impressed IMHO If you decide to go poly on the LCA, use the poly strut/brake relay rod bushings so that the entire LCA assembly is pulled forward properly on the bushing/pivot shaft assy, generally I do the entire front end in poly, with the exception of using rubber boots on all the joints (tierod/ball joint/etc) as the poly boots end up tearing/splitting
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Re: LCA poly bushings
[Re: DAYCLONA]
#2389632
10/19/17 12:19 AM
10/19/17 12:19 AM
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Joined: Jan 2004
Posts: 8,251 fredericksburg,va
cudaman1969
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fredericksburg,va
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I saw on here where someone was discussing these, where can I purchase some plus do they make new pins-bolts? I like the idea of them moving and greasing. Thanks I'd recommend PST polygraphite, I've used the Energy Suspension pieces, not impressed IMHO If you decide to go poly on the LCA, use the poly strut/brake relay rod bushings so that the entire LCA assembly is pulled forward properly on the bushing/pivot shaft assy, generally I do the entire front end in poly, with the exception of using rubber boots on all the joints (tierod/ball joint/etc) as the poly boots end up tearing/splitting Thanks, if not attached to the upper a-arm and shocks would they move up and down easy? Reason being I'm looking to use on my race car to get easy front end movement. The stock type isn't free enough and locks that shaft to the rubber. I want it to move (with grease if need be). I like the idea of the more solid strut bar bushings too.
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Re: LCA poly bushings
[Re: cudaman1969]
#2389709
10/19/17 07:26 AM
10/19/17 07:26 AM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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I saw on here where someone was discussing these, where can I purchase some plus do they make new pins-bolts? I like the idea of them moving and greasing. Thanks I'd recommend PST polygraphite, I've used the Energy Suspension pieces, not impressed IMHO If you decide to go poly on the LCA, use the poly strut/brake relay rod bushings so that the entire LCA assembly is pulled forward properly on the bushing/pivot shaft assy, generally I do the entire front end in poly, with the exception of using rubber boots on all the joints (tierod/ball joint/etc) as the poly boots end up tearing/splitting Thanks, if not attached to the upper a-arm and shocks would they move up and down easy? Reason being I'm looking to use on my race car to get easy front end movement. The stock type isn't free enough and locks that shaft to the rubber. I want it to move (with grease if need be). I like the idea of the more solid strut bar bushings too. The poly LCA bushings press into place by hand, and rotate freely 360 degrees in the LCA bore with little to no friction/resistance (so yes, unsupported/retained by the upper arm/spindle, the LCA would just drop completely), you must retain the steel outer shell of the old rubber factory bushing in the LCA bore in order to use/install the poly, most kits supply a new set of factory style rubber LCA bushings to install, then remove the rubber bushing to retain the steel outer shell if your LCA's are bare/void of existing OEM bushings, I mention replacing the brake strut/relay rod bushings with poly units, as the OEM rubber ones "push" the LCA further back, the poly LCA bushing moves the LCA slightly forward because of it's profile vs the OEM design, if you use the OEM strut rod bushings, it splays the LCAs rearward at an angle after install, and or allows for some forward/aft movement of the LCA on the poly bushing, often resulting in excessive wear, or alignment issues, or both...often the reason poly LCA bushings get a bad rap, from installation error... depending on the LCA pivot shaft used, and the type of poly bushing used, you may also be required to leave/install the inner steel sleeve from the OEM LCA rubber bushing on the pivot shaft
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Re: LCA poly bushings
[Re: IMGTX]
#2389837
10/19/17 02:25 PM
10/19/17 02:25 PM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
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I Live Here
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Mass
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I used the Polygraphite bushings in my 74 Satellite. They are not squeak free. Speed bumps or any suspension movement that is near full travel will squeak I've never had any poly bushings squeak, my vehicles or customers installs, street, track or road course, and I've been using PST poly since the 80's, as well as assorted other mfgs, if you properly lube all the bushings before and after assy, as well as tighten everything installed at RIDE HEIGHT, you can avoid any squeaking that results from dry or improperly installed components, using petroleum based lubricants will shorten/degrade the poly as well
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Re: LCA poly bushings
[Re: cudaman1969]
#2390020
10/19/17 09:14 PM
10/19/17 09:14 PM
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Joined: Jan 2011
Posts: 15,859 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 15,859
Central Florida
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Whether they squeak or not definitely seems dependent upon the vehicle's suspension design. My Diplomat Police cars squeaked a little at first with the graphite pst stuff, but quit after a few miles of use. I read on the late model Charger forums that they squeak pretty bad and require regular re-greasing when using poly stuff, so suspension geometry seems to play a role too.
Facts are stubborn things.
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Re: LCA poly bushings
[Re: cudaman1969]
#2390297
10/20/17 02:20 PM
10/20/17 02:20 PM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
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I Live Here
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Posts: 18,157
Mass
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What lubricant can be used to not deteriorate the poly? Purchase the correct lubricant from the Poly bushing mfg of your purchase choice, as every mfg has different grades/types of lubricant to accommodate the various grades of polyurethane they offer
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Re: LCA poly bushings
[Re: cudaman1969]
#2390554
10/20/17 10:47 PM
10/20/17 10:47 PM
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Joined: Jan 2011
Posts: 15,859 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 15,859
Central Florida
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I don't think any lubricants will deteriorate polyurethane, but I would use White Lithium Grease.
Facts are stubborn things.
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