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MCSS Swaybar Size

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Old Dec 10, 2007 | 11:27 PM
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Default MCSS Swaybar Size

So we talked about this last winter, but IIRC we never nailed down what size bars the MCSS has.

I'm going to poly my front and rear bars and endlinks ... do any of you guys have a micrometer to get a definitive answer?

Thanks!
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Old Dec 11, 2007 | 08:06 AM
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Ummmm...no. The REAR might be, but the front is 34mm iirc.

On the Impala, which runs the same setup, it's 34mm and 18mm. ***k what GMCanada says...they apparantly can't measure even in metrics. (their site claims 19.4mm or something like that).

No, i have not measured anything, but i'm 95% certain those are the correct sizes.
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Old Dec 11, 2007 | 11:26 AM
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All Montepalas have MacPherson struts front and trilink coil-over struts rear, but SS ups the anti-roll bars. Hollow bars replace solid ones, 34mm front (4 mm larger than the V-6's) and 19.4mm rear (up 3.4 mm).

got this off motor trend.com
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Old Dec 11, 2007 | 11:50 AM
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Hmmmm...someone deleted the post before mine...but they claimed the front was 18mm. Sure, make it look like i'm fighting with myself


Monty...pretty sure that's incorrect info as well. The 19.4mm hollow rear came from GMCanada's specs, which, i believe, someone disproved. The US figure was 18mm & solid. My OEM bar was 34mm and solid, as is identical in part number to the solid GMPP front sway available in the performance handling package from GMPerformanceParts.

EDIT: At http://www.chevrolet.com/impala/features/

Performance-Tuned Suspension
--------------------------------------------------------------------------------

SS models and — NEW for 2008 — LTZ models feature more aggressive spring rates, a larger 34mm front stabilizer bar and 18mm solid rear stabilizer bar. This suspension is tuned for crisp handling using the 18-inch W-speed–rated Performance tires.

Last edited by BuffaloSS; Dec 11, 2007 at 11:57 AM.
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Old Dec 13, 2007 | 09:31 PM
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Thanks ...

When I "shake" my car at 75, the *** wags, waiting for it to get above freezing to get underneath and see if an end link or something is broke. Tire PSI is at 35 hot right now, usually I keep it at 38 in the summer.

I'll order the poly mounts and hopefully get them on the car before the new year, then try out the new found handling on the ice!
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