My SSR: '06 PB #21661 Born 8/29/05, GHL "Old School" True Duals, ADDCO bars, Eibach rear, Joe's Tune
Sway Bar ADVISORY
This advisory is for all SSR owners with ADDCO sway bars installed.
There is no alarm to be sounded, as we think this is an isolated case, but it is appropriate to inform the rest of the community of the findings and request an inspection.
In January of this year, I brought ADDCO on board as a regular supplier of SSR sway bars. The very early design of the rear bar had a thicker flange and larger diameter hole at the mounting flange than was appropriate. This precipitated an ADDCO design change before they shipped any to this forum. We don’t know the source, but evidently an old design rear sway bar managed to find its way onto one of our SSRs.
Please perform an inspection of the rear sway bar links to be sure that the locknut is tight and that the nylon locking feature is engaged. A mounting flange thickness of approximately 0.460” will provide enough thread protrusion to assure adequate locking. A mounting flange thickness of 0.600” or greater will not provide adequate engagement. Please reference the two attached photos. If you find that your rear sway bar is of the thicker variety, contact the ADDCO VP of Operations, Mr. Dan Osborne at dan@addco.net. I made Dan aware of the issue today and he offered himself as the point of contact for this.
Please also note that GM does not recommend re-use of the sway bar attaching nuts. If you did not replace them when installing your sway bars (of any type), you may acquire new and replace them at the next convenient opportunity.
If you look at the front sway bar attachments, you should find enough protrusion through the nylon locking feature to have the end of the center stud even with the surface of the nut. You should not expect to see as much as the rear bar, but the nylon feature should be engaged. Again, following approved GM procedures, please consider replacing any re-used linkage lock nuts on the front bar at your next opportunity. You can also take the extra step of putting some BLUE (medium strength) Locktite onto the threads of the front bar. Red is not recommended.
Researching the replacement nuts has provided hardware part number revelations and resulted in a pending change to the parts manual. Here are the CORRECT part numbers for replacement linkage nuts:
P/N 3537772 is the REAR sway bar linkage nut (12mm x 1.75), Torque rear retaining nuts to 66 ft/lb.
P/N 11516382 is the FRONT sway bar linkage nut (14mm x 2.0), Torque front retaining nuts to 77 ft/lb.
Special thanks to RSSRTOY (Mark) for the changes coming to the parts manual and to Wingrider (Bill) for his counsel in this advisory.
Feel free to contact me if you have any questions.
Mike
__________________ Trust and Generosity are contagious.
My SSR: 2004 Yellow/ purple, sometimes gold #3521 RATICL 2
Sway bars
Thanks Mike. I will get the new nuts for the clamps. I had the rear sway bar replaced twice. First one layed against the pumkin. They did send another one which fits perfect.
Doug E /
Thanks Mike. I will get the new nuts for the clamps. I had the rear sway bar replaced twice. First one layed against the pumkin. They did send another one which fits perfect.
Doug E /
Doug, I have the same problem, sent you a PM....thanks.....Tom
I went to my local chevy parts department today to get the official GM nylon locking nuts to use when I finally get my ADDCO sway bars.
The parts guy had the 3537772 (rear) nut in stock. I examined the 3537772 nut and it was NOT a nylon locking nut as I expected. It looks similar to the one on the SSR, but minus the nylon locking feature.
The parts guy located a part number he believes the rear sway bar nut should be and that is 11519879. He did not have that one in stock. I'll get a "bag of 5" early next week.
I've attached a picture of the GM part number 3537772 nut. It's not a great cell phone picture, but I can verify that there was no nylon locking material on this particular nut.
__________________
06 Black/Silver SSR
08 Infiniti G37 Coupe
04 Ford Thunderbird PCR #428
06 Toyota Highlander Hybrid
My SSR: '06 PB #21661 Born 8/29/05, GHL "Old School" True Duals, ADDCO bars, Eibach rear, Joe's Tune
Not A Problem
Quote:
Originally Posted by shiftz33
I went to my local chevy parts department today to get the official GM nylon locking nuts to use when I finally get my ADDCO sway bars.
The parts guy had the 3537772 (rear) nut in stock. I examined the 3537772 nut and it was NOT a nylon locking nut as I expected. It looks similar to the one on the SSR, but minus the nylon locking feature.
The parts guy located a part number he believes the rear sway bar nut should be and that is 11519879. He did not have that one in stock. I'll get a "bag of 5" early next week.
I've attached a picture of the GM part number 3537772 nut. It's not a great cell phone picture, but I can verify that there was no nylon locking material on this particular nut.
Robert,
The nut you have IS a locking type. It also has an integral washer, if I remember correctly. The locking mechanism is found in the slightly compressed sides of the nut. Look closely at it and you will see that the threaded part is not really round. It is smooshed a little from two sides. This will cause just the right amount of binding on the threads of the connection link.
If you want to do the belt and suspenders trick, you can put a little locktite on the threads before you attach it. It's not necessary, but works fine.
If the parts guy has an alternate number that has the integral washer and the locking feature, go for it. Just be sure to torque it properly.
Regards,
Mike
__________________ Trust and Generosity are contagious.
The nut you have IS a locking type. It also has an integral washer, if I remember correctly. The locking mechanism is found in the slightly compressed sides of the nut. Look closely at it and you will see that the threaded part is not really round. It is smooshed a little from two sides. This will cause just the right amount of binding on the threads of the connection link.
If you want to do the belt and suspenders trick, you can put a little locktite on the threads before you attach it. It's not necessary, but works fine.
If the parts guy has an alternate number that has the integral washer and the locking feature, go for it. Just be sure to torque it properly.
Regards,
Mike
Is "smooshed" a technical term in the aviation industry?
My SSR: '06 PB #21661 Born 8/29/05, GHL "Old School" True Duals, ADDCO bars, Eibach rear, Joe's Tune
Lighten up Doug....
Quote:
Originally Posted by Doug Allen
Is "smooshed" a technical term in the aviation industry?
No, "smooshed" is not a proper term for the type of locking mechanism on those nuts. I just can't remember the exact descriptor for that type of feature.
My special order of sway bar nuts arrived today. I looked at the 11519879 nut (rear sway bar) and it has the nylon locking feature which looks identical to the one on my 2006 SSR.
The only downer for the day was while I was under my SSR, I noticed my engine is leaking oil..... just like my 05 SSR at the base of the transmission bell housing weep hole..... I purchased some oil leak detection dye today from the chevy dealer that I purchased the sway bar nuts from. That way when I take it into the service department where I purchased my SSR, I won't have to wait or take it back in for them to see the leak.
At least I have the necessary parts to install my ADDCO sway bars, whenever those arrive.....
__________________
06 Black/Silver SSR
08 Infiniti G37 Coupe
04 Ford Thunderbird PCR #428
06 Toyota Highlander Hybrid
Any reason why I can't get those nylon locking nuts from a local NAPA parts store rather then dealing with a GM dealer?
I know of no reason. I only purchased them through the Chevy parts department to show that I used the "correct" parts if there ever was a warranty issue (not likely).
__________________
06 Black/Silver SSR
08 Infiniti G37 Coupe
04 Ford Thunderbird PCR #428
06 Toyota Highlander Hybrid
My SSR: 04 Ricochet, ADDCO, Eibach, Joe’s Tune, Bernie’s Kit,Air Dam, Aux Fan & Lower Radiator Supt
Quote:
Originally Posted by shiftz33
I know of no reason. I only purchased them through the Chevy parts department to show that I used the "correct" parts if there ever was a warranty issue (not likely).
Then I'll deal with NAPA as it within a mile from me compare with the dealer which is 20 - 30 minutes drive for me
The only other thing I would mention is the rear sway bar nut has an integrated washer. If you get a regular locking nut, you'll have to a washer as well or be lucky enough to locate a locking nut with an integrated washer. That's another reason I went with the GM part.
__________________
06 Black/Silver SSR
08 Infiniti G37 Coupe
04 Ford Thunderbird PCR #428
06 Toyota Highlander Hybrid
/
I purchased some oil leak detection dye today from the chevy dealer that I purchased the sway bar nuts from. That way when I take it into the service department where I purchased my SSR, I won't have to wait or take it back in for them to see the leak. 
