Thread: The Addco rear sway bar is not dead!

The general consensus from what I read was that the big thick shiny black Addco rear sway bar was out of production and no more. Well im bad at taking no for an answer and I wanted oversteer in a FWD car so I called them up. A really nice lady answered and after asking if they had any 639 bars in stock she walked to the warehouse and checked for me. Turns out they still have all of the jigs and stuff to make them AND had 4 or 5 just sitting there! They were missing a few bar clamps so she put them on order. I then officially ordered one from summit racing. A couple months later the backordered bar clamps showed up and they shipped me my bar! It bolted in with all of the factory mounts and everything! The best part? The long awaited bar clamps wouldn't fit on my car anyways... lol. Now combine this bar with my Doorman front sway bar, ZZP strut tower braces, zzp trailing arms, KYB GR2 struts, Saggy stock springs in the front, heightening springs / heavy load springs in the rear, and 245/50R16 Riken Raptor ZR tires on stock rims. The GMPP bar feels like a limp noodle in comparison and the rear end feels 10X tighter after swapping. I now have a grand prix that easily out-handles everything that has dared try to keep up with me on my favorite stretch of windy road. One mildly built cobalt SS even lost control and ended up flying off the road he was trying so hard to keep up. Still wasn't even close. Best part? It will now oversteer on occasion and I giggled like a little girl the first time it happened. Then I gave 3 different car buddies rides and they all had the same reaction. It feels so wrong that its just hard not to smile! Now who wants to see me enter a w-body into an auto X competition?

Link to sway bar. http://www.summitracing.com/parts/aco-639

Picture time!

Lol warnings. Apparently oversteer kills soccer moms.



Bar by itself



Compaired to your average sharpie



GMPP bar vs Addco





Installed! No clearance issues. 45 minutes from tools out to tools put away.





Bonus link to a video of me trying to melt my headers because why not?
http://youtu.be/PB6go96wcso

Thanks for posting the part number, I was looking for it last week and must have deleted my old notepad with compiled part numbers.

Out of curiosity, did the bar come with poly bushings? I've got some Energy Suspension bushings on my GMPP bar now, they almost make as much difference as the bar itself! I had to make inserts to sit under the bushings since they don't have that curved shape like the stock ones, I wonder if that's an 04+ thing. I recall seeing someone shave/grind down the bar clamps to fit properly, I know they can cause a clunking noise if they aren't ground down enough. They would probably make quite a difference though.

That bar and some rebuildable Bilsteins are the last suspension components on my wish list, the GMPP bar doesn't cope with the subwoofers and battery all that well. Congrats on that beast sway bar!

You lost me when you didn't swap out your lateral arms and toe links. Shame you aren't closer, you and I would have fun pushing our crap boxes through twisted roads.

Those are next bill. Never fear! The butt end of this thing already feels so tight I wont know what to do with it after swapping those last few stock parts. Someone told me to get tubular control arms up front... I laughed and laughed. Winter + exposed joints = bad. My acdelco arms are plenty.

I have dormans up front. GMPP bar up front with urethane everything. GMPP in the rear with urethane as well. Then the HT MS tubuars with urethane for all rear bars/links. F & R STB's, a set of 18" lucerne wheels with super stickies on them. She corners

Yessssssssss. I love throwing these derpy cars around corners.

Tis funny seeing people figure that you should be off the road against a tree...meanwhile you are still hugging the road as good as a pile of crap can.

and here I am just like I wonder how fast I can get from here to there as straight as possible.

You were gonna drive to Gregs house to look for sway bars?

Now if only there was something like this for us H-body dudes. Always left out and ****.

Fab your own lol. Jig, metal, torch, hammar lol

Check the application guide on their site... Looks like there is one listed for G-Bodies. http://www.addco.net/aftermarket/catalog/pontiac/

Really that big of a differnce coming from a GMPP bar?

Huge... Giant difference.

Originally Posted by nos4blood70

Now if only there was something like this for us H-body dudes. Always left out and ****.

So not left out.. Just need to research.

Wish I would have known when I did my suspension. I thought the gmpp was it

Subbed this is awesome

I like unicorns