prob a dumb ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

81ratrodc10 · 11-14-2011, 08:57 PM

So i was under my truck today and noticed that the bottom bushing on my body mount was about hanging off so my ? Is whats the pupose of body mount bushings are they just there for spacerers or is there a real pupose for them
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81ratrodc10 · 11-15-2011, 06:29 AM

Well i guess it is a dumb one or i have stumped evryone no one can give me an answer
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xrcr · 11-15-2011, 08:13 AM

spacers, alignment, attach cab to frame.

J Knight · 11-15-2011, 08:35 AM

I assume they serve two purposes.
Dampen road and engine vibrations for comfort.
Allow for frame flexing.
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Keith Seymore · 11-15-2011, 09:52 AM

Patience, grasshopper -

Yes - it provides isolation of the cab from the frame.

If you were to use a solid washer, or spacer, then it would "ground out" allowing the vibrations to pass directly from the frame through the bolt and into the cab, where you would hear/feel it. The use of the rubber donut on the bottom completely disconnects the vibration path.

K

81ratrodc10 · 11-15-2011, 11:03 AM

So its something i should replace in the nere future thanks
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THE "10" SILVERADO · 11-15-2011, 11:29 AM

Quote:

Originally Posted by 81ratrodc10

So its something i should replace in the nere future thanks
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Not necessarily but it might be a good idea. After a while the rubber hardens and falls apart (atleast that's what mine did) and the bushings didn't do what they were supposed to. Replaced them with new ones....found out that the old bushings were compressed to like 3/4 what they should have been.

11-14-2011, 08:57 PM	#1
81ratrodc10 house of chevy's Join Date: May 2010 Location: New milford, CT Posts: 583	prob a dumb ? So i was under my truck today and noticed that the bottom bushing on my body mount was about hanging off so my ? Is whats the pupose of body mount bushings are they just there for spacerers or is there a real pupose for them Posted via Mobile Device __________________ 1987 m1028 cucv d30 2001 chevy s10 2000 honda shadow sabre 1100 "it's going to be an interesting ride home"

11-15-2011, 06:29 AM	#2
81ratrodc10 house of chevy's Join Date: May 2010 Location: New milford, CT Posts: 583	Re: prob a dumb ? Well i guess it is a dumb one or i have stumped evryone no one can give me an answer Posted via Mobile Device __________________ 1987 m1028 cucv d30 2001 chevy s10 2000 honda shadow sabre 1100 "it's going to be an interesting ride home"

11-15-2011, 08:13 AM	#3
xrcr Registered User Join Date: Dec 2008 Location: Foristell, MO Posts: 418	Re: prob a dumb ? spacers, alignment, attach cab to frame.

11-15-2011, 08:35 AM	#4
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: prob a dumb ? I assume they serve two purposes. Dampen road and engine vibrations for comfort. Allow for frame flexing. Posted via Mobile Device __________________ John 82 Chevy Silverado 350ci/TH350

11-15-2011, 09:52 AM	#5
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,239	Re: prob a dumb ? Patience, grasshopper - Yes - it provides isolation of the cab from the frame. If you were to use a solid washer, or spacer, then it would "ground out" allowing the vibrations to pass directly from the frame through the bolt and into the cab, where you would hear/feel it. The use of the rubber donut on the bottom completely disconnects the vibration path. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

11-15-2011, 11:03 AM	#6
81ratrodc10 house of chevy's Join Date: May 2010 Location: New milford, CT Posts: 583	Re: prob a dumb ? So its something i should replace in the nere future thanks Posted via Mobile Device __________________ 1987 m1028 cucv d30 2001 chevy s10 2000 honda shadow sabre 1100 "it's going to be an interesting ride home"



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