LT1-LT4 Modifications 1993-97 Gen II Small Block V8

alright to have poly trans AND engine mounts?

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Old Feb 22, 2008 | 11:19 PM
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Default alright to have poly trans AND engine mounts?

hey guys, well i have my car all apart doin the mods in my sig and figured i may as well do poly engine mounts well im at it, and then i thought.. might as well do the trans also but i don't want to break the bellhousing with a poly trans mount you know.. what are your thoughts?
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Old Feb 22, 2008 | 11:29 PM
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I have a poly trans mount.....I went old school on the motor and have it chained down. It's an A4, so not sure about your question. I do think I feel more driveline vibes with the poly mt. But I use a 3600 stall and it shifts hard so I need a good hard trans mount. Ripped the stock one right in half. I am very interested in how the LT4 hotcam does for you. Thats what I have planned for mine! Let me know. Thanks Ric
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Old Feb 22, 2008 | 11:33 PM
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you should be fine with all poly mounts. You will just feel more vibration from the engine and trans.
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Old Feb 22, 2008 | 11:36 PM
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ya i'll post up some after vids when its all buttoned up Ric,

oh ya- its a 6 speed i was just reading on here that having that solid of a trans mount may put more strain on your bellhousing and crack it, but i am putting poly engine mounts also.. so....
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Old Feb 23, 2008 | 08:50 AM
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Curious also as I will be pulling my motor out. Either the motor mounts or trans mount is wore out, I can see my shifter stick vibrating around when I give it some gas in neutral, its shaky when driving down the road also.
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Old Feb 23, 2008 | 09:38 AM
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I have poly motor and trans mounts, car is an A4. No reason you should have any kind of issues other than feeling a little more vibration. It's only a little though.
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Old Feb 23, 2008 | 04:19 PM
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ive heard if you are going to have one you should have the other and that shifting of the bellhousing comes from doing one and not the other.makes sense if you think about it
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Old Feb 23, 2008 | 07:45 PM
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@!$#%@# IM SOO frustrated with this, okay so getting them on was no big deal because my car is all apart already but i've only got the passenger side half done... ok my question is SHOULDN'T THE POLY MOUNT be TIGHT in between the clamshells?? I bought energy suspension ones from Autozone, and right now i have everything on but the poly does not seem tight in between the clamshells, if anything it seems really loose like the stock rubber was tighter.. WTF!!!!!!!!!
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Old Feb 23, 2008 | 08:52 PM
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even when i have the poly in there and the clamshells pressed all the way together it still wiggles in between them.

wtf? should i use them anyway
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Old Feb 23, 2008 | 11:19 PM
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poly mounts are fine, you'll break bellhousings when you use solid steel on 1 and something other than solid on the other...any combination of poly/rubber or all poly/all rubber is fine, just dont mix something that gives with a steel mount
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Old Feb 24, 2008 | 07:41 AM
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ya i know man, but i have a new problem if you look at my last 2 posts

the poly mounts i bought are loose in between the clamshells, im worried that when i install them the engine is going to move even more than before, it's weird they're energy suspension and i know there's supposed to be some sort of clamping going on there in between the clamshells but mine has nothing. it actually wiggles in the clamshell even if the clamshells are compressed all the way. so WTF its really frustrating.
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Old Feb 24, 2008 | 07:50 AM
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I've decided im ditching these POS energy suspension junkers, what a joke of a polyurethane mount.

What brand should i go with guys? I was looking at prothane from Jeg's $72.99 for both engine mounts and tranny mount what do you think?
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Old Feb 24, 2008 | 10:23 AM
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if you do ditch the how much do you want for them?
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Old Feb 24, 2008 | 11:37 AM
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dude trust me you don't want these man they are crap, im just going to clean them up and take them back to autozone for a full refund lol.
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Old Feb 24, 2008 | 11:39 AM
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but seriously what brand should i go with ?
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Old Feb 24, 2008 | 12:21 PM
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thanks for the heads up man.
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Old Feb 24, 2008 | 05:22 PM
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I bought some Prothane motor mounts and they work great, you may have to do a little bit of grinding to get the clamshell completely together but they fit perfect.
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Old Feb 24, 2008 | 09:15 PM
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alright guys took my ES ones back to autozone today got a full refund

now what should i go with ???

prothane from jegs or ?
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