New shocks/springs - Advice? - Chevy Impala SS Forum
 
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post #1 of 5 (permalink) Old 09-16-2003, 06:17 AM
m82a1
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I would like to change my springs/shocks very soon. I have a '95 9C1 and would like to maintain the higher stance but also gain some improved handling from the current (worn out) set up. Here parts/prices I'm considering.

1104/0929 Bilstein shocks ($65.40 each) http://www.bimmerparts.com

Golbal West front springs ($??) http://www.globalwest.net

OEM 9C1 rear springs HD SEO ($139.90) impalasuperstore.com

Energy Suspension Rear Coil Isolator ($6.50) impalasuperstore.com

One other option I have considered is Moog 5030's for the front. They are a bit cheaper but from what I've read they don't seem to be as highly recommended as the GW springs.

Is there anything I'm forgetting? Are there any isolators on the front springs? I've never actually replaced springs/shocks on a vehicle before but I'll be attempting these on my own.

So what are some opinions/suggestions from other board members? Any better set up or better pricing to be had? Any suggestions on other parts or techniques for installing these? My tools include a single set of jack stands, extensive set of sockets/wrenches, and a dremel tool, I also realize I will need to by or rent a spring compressor.

Thanks in Advance...
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post #2 of 5 (permalink) Old 09-16-2003, 07:41 AM
bengston
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From what I understand, the GW springs are very close to stock SS height. I would think that stock SS rears would be a good match, but some do like a "raked" apearance. One caveat with the SS rears would be that I would recommend Airlifts for times when you load the car down, but that also allows some fine tuning even unloaded.

Isolators:
https://www.impalassforum.com/cgi-bin...=000988#000000
post #3 of 5 (permalink) Old 09-16-2003, 08:14 AM
jpalmer
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I would suggest that you first read this article:
http://www.theherd.com/articles/susp.html

Then, keeping in mind you want the "higher stance", if you do not want to do all the mods mentioned in the above article you can simply buy new 9C1 springs. For better performance I would just install rear lower control arms and then put on a set of aftermarket sway bars. Bigger bars will add tons of performance to your handling without lowering the car with aftemarket springs.

To go cheap: use BMR control arms and Hotchkis sway bars.
Not so cheap: Global West control arms and F-body front and HA/HO rear sway bars.
Most other springs will lower your car, unless you go to a MOOG Cargo Coil which may even raise it a bit.
Oh and BTW, shocks: cheap KYB & Monroe Severe duty
not so cheap: Bilsteins & HAL QA1

Nothing like havin' choices
JP
 
post #4 of 5 (permalink) Old 09-16-2003, 08:50 AM
m82a1
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I wasn't really looking for a "raked" look. 9C1 springs in the rear may not be the best option if I go with GW fronts. I guess I could just go with stock 9C1 springs but the price I saw at the superstore looked a bit high ($225). I liked what I have been hearing about GW front springs which combined with the lower price was my motivation to go for those. What rear springs (other than impala) would be recommended to use with the GW springs then? I've done searches but couldn't really find a consistent opinion for that question.

My issue with the stock impala springs is what might happen when I load them down. I don't often put a lot of weight in the trunk but it does happen on occasion. Often my car is used to drive friends around so the back seat is often full. I wouldn't be opposed to getting the Impala's lower height. I was just looking to keep the stiffer set up of the OEM 9C1 springs. I'd prefer not have air lifts.

Any other opinions?

Oh, for right now the shocks are a "must replace" and I figured doing the springs at the same time wouldn't be a bad idea. I plan on doing control arms, ect. a little bit later.

Thanks...
post #5 of 5 (permalink) Old 09-16-2003, 09:03 AM
bengston
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From what Ed Runnion has indicated before, the stock SS rear spring is one of the best from a handling point of view, but that the front SS spring is too low of a rate. When I asked him about 9C1 front springs, he felt it was not worth the effort which has made me decide to get the GWs when I get around to upgrading the suspension.

The answer to the problem of poor load carrying performance of the stock SS rears is addressed with the addition of air bags. With the Airlifts in place, I have carried some very heavy loads and still not had to air the bags up over 15 PSI. Normally I leave them at 7.5, which gives a level stance with about 100 Lbs in the trunk, or a slight rake when empty and a bit more neutral handling.
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