rubber body bushings or poly kit? - Chevy Impala SS Forum
 
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post #1 of 9 (permalink) Old 03-23-2002, 10:05 AM
babyhauler
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Does the energy suspension 30 bushing upper & lower body bushing kit make the SS too hard? Or will a complete kit of factory upper & lower rubber bushings firm things up nicely w/ out the harshness.
I HATE SQUEAKS & RATTLES. I don't want to give them a place to start. I'm planning on firmer shocks & sway bars soon. I want better solo II performance but not get too hard for the street. Any suggestions or experiences would be helpful.
Thanks for your supreme wisdom
later
babyhauler
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post #2 of 9 (permalink) Old 03-23-2002, 11:34 AM
dimpala95
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I would suggest going with the rubber 9C1 bushings from Dal. They firm things up quite well and no squeeks that the poly's will give you. Remember to do the front two bushings under the radiator support. You should have 16 total to place or replace. Takes about 30-45 minutes at a leisurely pace and you don't even have to jack the car up.
post #3 of 9 (permalink) Old 03-24-2002, 02:06 PM
KWBaraka
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<BLOCKQUOTE>quote:</font><HR>Originally posted by dimpala95:
I would suggest going with the rubber 9C1 bushings...They firm things up quite well and no squeeks that the poly's will give you.<HR></BLOCKQUOTE>


Dimpala,

As long as you go with the black bushings, there is no squeek with poly; and they perform much better than the rubber.

KW
 
post #4 of 9 (permalink) Old 03-24-2002, 07:43 PM
Erik
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As it happens, I just installed the Energy Suspension poly bushings today. All I can say is WOO HOO! It's like driving a new car, no lie. The ride is not too hard and I have no squeaks (although I only took her out for a fairly short, if spirited, test drive). This is the BEST handling mod I have done so far. It made more of a difference than the HO/F-body sway bars (probably because with the poly bushings they can finally do their job the way they are supposed to). It also appears to have cured a very annoying problem I was having where my headlights would shake every time I went over a rough stretch of road, and I think it fixed my outside rear view mirrors too, which were vibrating whenever I was driving at highway speeds.

The installation was a major pain in the ass. I figured it should take about two hours so, of course, I doubled that in my planning. All in, it took about five hours from start to finish. (Maybe I'm slow, but I don't think I could have done it more than about a half-our faster even knowing what I was doing.) My only regret, though, is that I didn't make the time to do this last Fall when I ordered the kit in the first place. Whichever way you go (Dal or ES), I would recommend that you buy a few new bolts from Dal or Sam, as well as new metal cups/sleeves (I don't know what else to call these -- they're like a cupped washer with a sleeve attached and they go over the top bushing (in the #7 and #8 positions) and the sleeve goes down through it, or under the bottom bushing (in the #1 position) and the sleeve goes up through it) for the #1 position bushings (up by the radiator) and for the #7 and #8 position bushings (at the rear). I got new bolts but didn't get new cup/sleeve things, so I had to do a little work with the bench grinder to clean off some rust on the ones from those positions. My car has been in Connecticut all it's life and those were the only positions where I saw any problems.

Bottom line for me is, I LOVE this mod.
post #5 of 9 (permalink) Old 03-24-2002, 09:14 PM
dimpala95
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KW, believe me, they will eventually squeek. I've done a couple 4X4's and they didn't squeek for almost a year. I had to remove and lube the mating surfaces and squeeks went away. If you get poly graphite they should not squeek. I don't know if Energy Suspensions has such a kit out.
post #6 of 9 (permalink) Old 03-25-2002, 12:31 PM
AutocroSSer
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The black ones from ES are polygraphite. All other colors are NOT polygraphite.

Since the SS is no longer a daily driver (and thus, if it ends up squeaking a tiny bit I could live with it) I am seriously considering doing this with the polygraphite bushings.....
post #7 of 9 (permalink) Old 03-25-2002, 01:15 PM
Erik
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I used the black Energy Suspension bushings. I didn't put any grease on the bushings. I thought about it but I figured it would be temporary at best and I didn't plan on taking them back out and greasing them periodically. As I said above, no squeaks (after less than 24 hours) and did I mention that I LOVE THIS MOD? The whole car feels tighter and more solid, and that's even with my 128k front end and leaking steering gear box (all of which is slated for replacement in the next month or so).
post #8 of 9 (permalink) Old 03-25-2002, 03:16 PM
kevm14
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I have the PST super polygraphite kit in my 93. It sort of went through phases. First, no squeaks. Then as the weather got colder, squeaks. At one point, it was REALLY bad. Eventually, the squeaking died down (there is very little noise that comes from the CA bushings now), even in cold weather. I'd like to think this is the permanent mode of the bushings. It's been at least 10k since I did the job, fyi.
post #9 of 9 (permalink) Old 03-27-2002, 07:47 PM
KWBaraka
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<BLOCKQUOTE>quote:</font><HR>Originally posted by dimpala95:
KW, believe me, they will eventually squeek.... If you get poly graphite they should not squeek.... I don't know if Energy Suspensions has such a kit out.<HR></BLOCKQUOTE>


Dimpala,

Look at Ed's post after your last one. You ARE absolutely right...the poly WILL eventually squeek unless they are the poly-graphite bushings. For Energy Suspensions...that's the black (as opposed to red) bushings .

And MY BAD for not clarifying Energy Suspension black bushings in my first post [img]redface.gif[/img] .

KW
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