I was looking at my order on gmpartsdirect today, it been in process all day grr :evil: . Anyways, I found this for you people who are always complaining about your puny rear sway bar.  
GM PART # 12498642
PACK QTY: 1 CORE CHARGE: $0.00
OUR PRICE: $35.00  
DESCRIPTION: HEAVY DUTY REAR SWAY BAR KIT
For use on 1999-2002 Chevrolet Monte Carlo; 2000-2002 Chevrolet Impala; 1997-2002 Pontiac Grand Prix. This 19mm bar enhances cornering by reducing body roll. The kit includes stabilizer  

What was the size of our bar again 8mm? Anyways would this really help?

If it fits, it would. The Addco bar is about 22mm, so the GM one isn't that much smaller.

I was just guessing it would since everything else seems to fit from those newer models, anywasy, would you have to buy new bushing and stuff for that? Thanks,

Blacj Pheonix,

Did you get it, any problems fitting it?

no, not yet, it will be a couple months, if ever, i did order my stbs, and trailing arm upgrade though :D

what is the trailing arm upgrade?

1trucavalier: This is the trailing arm upgrade: http://www.netavalanche.com/tgp/viewtopic.php?t=1115

Black Pheonix: Did you ever get the swaybar? Did it fit?

Did anyone ever do this swaybar upgrade?  It seems like a reasonable price from GM compared to Addco.  Any input is great.  Thanks.

The newer sway bars have been talked about on the other forum. They don't fit.

So the only upgrade is Addco?  The trailing arms fit but the sway bar doesn't?

I got a pretty thick sway bar from a 96 Lumina (the thicker of available ones for that car?)  It fit fine around the exhaust and such but it was too wide to fit between the struts... where the bar bends towards the front of the car would have gone almost right through the center of the strut.  It may have been forceable but I didn't really want to risk bending the struts.  I have the FFP coilovers which may make some difference but as far as I know, the KYB struts are the same as the stock ones.  If you had some pipe bending work done, it would probably fit pretty well but as it is when you take it from your donor car, it won't fit.

PST also makes a similar swaybar.

I just checked with them --  they want $160 and the bar is made by ADDCO.  I can't find any other manufacturers.

there is a Group Buy for the Rear ADDCO bar at w-body.com right now!!

$135 Shipped

here is the link

http://www.w-body.com/forum/viewtopic.php?t=15292&start=15