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Old 06-29-2020, 11:00 AM   #1
bigd65
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Energy suspension motor mounts

Anybody have any idea why Energy suspension does not make Poly motor mounts for a 2004 Silverado crewcab 5.3 / 2 WD.....
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Old 07-02-2020, 06:20 PM   #2
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Re: Energy suspension motor mounts

Ok... how about an interchange. I called ES , they said the 99-06 were design were not released yet but the 07-14 have.
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Old 07-02-2020, 07:37 PM   #3
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Re: Energy suspension motor mounts

The rubber mounts holds up pretty well since it’s not the clamshell design from the gen I and II. I have pulled several 200k+ motors from the 1999-2006 Silverados and Sierras and the mounts were in great shape. No cracking or anything. Switching to urethane will provide for more vibration than rubber.
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Old 07-02-2020, 10:30 PM   #4
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Re: Energy suspension motor mounts

As a side question does the stiffer motor mounts mess with the knock sensors?
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Old 07-02-2020, 10:54 PM   #5
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Re: Energy suspension motor mounts

I wouldnt think it would effect knock sensors at all.... as far as the rubber mounts lasting, I prefer the strength and stability the Poly bushings provide. I dont know that i ever noticed any vibration. I built an 85 and did the total ES KIT....
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