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post #1 of 28 (permalink) Old 01-22-2015, 08:54 AM Thread Starter
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Additional Maintenance During Shock Replacement?

So I'm replacing the rear shocks on my 08 Cobalt this weekend and wanted to make sure i have everything on hand that I may I want to replace while I'm in there. I dont plan on replacing the spings but what other pieces are part of the spring mounting that wear out commonly? Upper spring mount, spring isolator/insulator? This is my first time doing this so I'm not sure what all is in there and what is commonly worn out. Can someone give me some reccomendations of replacement items to have on hand during the install?

Last edited by element4lifex8; 01-22-2015 at 09:11 AM.
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post #2 of 28 (permalink) Old 01-22-2015, 01:56 PM
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The springs and spring mounts should be okay. My balt' has 100k miles on it and I just replaced the rear springs for FE5's, and the mounts were perfectly fine. So unless the mounts looks rotted or cracked to you, I think all you really need to do is just replace the shocks.

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post #3 of 28 (permalink) Old 01-22-2015, 02:50 PM
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You should be good, the back isn't too complex.

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post #4 of 28 (permalink) Old 01-22-2015, 03:10 PM
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There's literally like nothing to replace on the rear of our car due to the very basic rear suspension.

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post #5 of 28 (permalink) Old 01-22-2015, 03:23 PM
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Might as well check the brakes while you are back there, but just look everything over and make sure your brake lines and gas lines are still solid, just give everything a quick check since you are down there anyways

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post #6 of 28 (permalink) Old 01-22-2015, 03:44 PM
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Additional Maintenance During Shock Replacement?

I'd check the upper spring mounts. There's a piece of isolation rubber/foam that sits between the spring and the spring cup. I've got 130k on my 05. Mine are completely gone but they'll be getting replaced when I swap axles in March. Some people have simply bought a stock rubber sheet 1/4" thick and cut it for the replacement. The new parts are pretty expensive and if yours is bad/needs replaced the foam/rubber is all you'd need. Unfortunately if you want to buy a new piece, gm doesn't sell just the rubber. You have to buy the whole assembly.


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post #7 of 28 (permalink) Old 01-22-2015, 04:37 PM
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If you have a pull yard near you, you can probably find one for a couple dollars

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post #8 of 28 (permalink) Old 01-22-2015, 05:53 PM
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The ones at the yard would also be rotted most likely.... mine were almost completely gone at 56k miles, wasn't about to spend 100+ for 2 new mounts so I just left it.... little squeaky but oh well... I'll probably look into that rubber sheet idea sometime this spring

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post #9 of 28 (permalink) Old 01-23-2015, 04:55 AM Thread Starter
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Perfect, thats exactly what I was looking for! I do recall at one point what looked like a worn out gasket hanging off the springs, which I think is now totally gone. I really didn't want to pay 50 bucks piece for the upper spring mount, thanks rains_crusader, thats a genius idea!!!!

And I hate to thread jack my own thread, but speaking of checking my brake and gas line, I was under the car the other day and saw an insulated line running along the pinch weld that appeared to have had the insulation pinched and torn by the pinch weld at some point maybe when some idiot at the tire shop jacked it up. i don't have a pic of the one on my car handy but the line appears to be the one in the forefront of the pic below, please tell me this is not a brake line!!!

Last edited by element4lifex8; 01-23-2015 at 04:57 AM.
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post #10 of 28 (permalink) Old 01-23-2015, 05:27 AM
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do you have picture of a stock rubber sheet. cuz my foam is gone too

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