Destroyed front sway bar frame mounts..again (pics) - Chevy Impala SS Forum
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post #1 of 21 (permalink) Old 07-29-2004, 08:01 AM
GForceSS
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Both the front sway bar mount brackets to the frame are completely ripped open for the second time in as many years. I have the f body front bar with a HA rear bar. I used the Energy Suspension brackets with the zerk fitting both times and I refuse to buy another set of these cheap strap pieces. Does anyone make a beefier bracket for the f body and perhaps have a GM part number available? Thanks

Milt
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post #2 of 21 (permalink) Old 07-29-2004, 08:35 AM
Rustic
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Where did your's fail?? I have considered making an improved version of this "strap" because I have had trouble also.
post #3 of 21 (permalink) Old 07-29-2004, 08:37 AM
bengston
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This is going WAY back...
2 10288551 1LE Sway bar bushings(these have a liner so they don't need to be greased.)

Not sure what the PN for the brackets are but they will be the ones for the '93+ Camaro.

Unless you have already replaced the bolts with non-prevailing torque ones;
4 15959689 Bolts
 
post #4 of 21 (permalink) Old 07-29-2004, 10:39 AM
AutocroSSer
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Agree with Chris' question : is it destroying the bracket or ripping it out of the frame?

I'll admit I'm perplexed by that, as I have been running those same brackets for 4+ years now (with the same front bar) and I dare say I use the car a bit harder than you do

Of course, after the incident last night I am gonna be under there checking out all kindsa crap like that just to be SURE it is ok!
post #5 of 21 (permalink) Old 07-29-2004, 12:52 PM
Mr pogo
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I might know a possible cause, saw something on mine when I installed ES front bushings and endlinks awhile back. I noticed before that the front sway bar was kissing the frame by the sway brar brackets when suspension was compressed, I made spacers to go between frame and sway bar brackets out of 3/16" flat stock when I installed the ES parts.
Looking at someone elses B body last week theirs also had signs of contact in same place so I dont think mine is an isolated case. Maybe the F body bar shape agravates frame contact.
post #6 of 21 (permalink) Old 07-29-2004, 01:46 PM
GForceSS
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The new GM non-prevailing bolts I bought back when look like new. The frame is fine too. Just those Energy Suspension straps ripped apart like they went throught the kitchen disposal!


Drivers side


Passenger side
post #7 of 21 (permalink) Old 07-29-2004, 05:59 PM
BAD ROD
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Holy cow! I can't believe that!
post #8 of 21 (permalink) Old 07-29-2004, 06:37 PM
AutocroSSer
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Milt : if I had to guess....

Those silver washers under the bolts, you added them right?

If so, DON'T. Just put the bolt straight onto the bracket, using ONLY that brass-colored (smaller) washer if necessary.

I think what happened here is those silver washers aren't getting truly "flat" on the bracket but rather are going slightly into the bend. When you crank it down, it's putting stress into that bend.

Over time, it makes the bend a lot weaker than it otherwise would be.....until it snaps the bracket [img]smile.gif[/img]

I'll look carefully at mine next week (when I'll finally get a chance to get under the car) and let you know what I find.

Also forgot to mention : I am using those brackets on the back of my Subaru as well, no issue. And that car had a WELL known issue with the OEM bar brackets.....so much so that Subaru themselves revised the bracket (to a design more like what ES is using, albeit rubber bushings and not greasable) starting with the 04 WRX/STI despite the fact that they didn't change the bar size in those years!
post #9 of 21 (permalink) Old 07-29-2004, 06:40 PM
jimmer818
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I just replaced my factory ones on one of my SS's. It busted the drivers side, I bought some energy suspension ones that look just like those.
post #10 of 21 (permalink) Old 07-29-2004, 11:34 PM
GForceSS
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Quote:
Originally posted by AutocroSSer:
Milt : if I had to guess....

Those silver washers under the bolts, you added them right?

If so, DON'T. Just put the bolt straight onto the bracket, using ONLY that brass-colored (smaller) washer if necessary.

I think what happened here is those silver washers aren't getting truly "flat" on the bracket but rather are going slightly into the bend. When you crank it down, it's putting stress into that bend.

Over time, it makes the bend a lot weaker than it otherwise would be.....until it snaps the bracket [img]smile.gif[/img]

I'll look carefully at mine next week (when I'll finally get a chance to get under the car) and let you know what I find.

Also forgot to mention : I am using those brackets on the back of my Subaru as well, no issue. And that car had a WELL known issue with the OEM bar brackets.....so much so that Subaru themselves revised the bracket (to a design more like what ES is using, albeit rubber bushings and not greasable) starting with the 04 WRX/STI despite the fact that they didn't change the bar size in those years!
Ed
Thats how I had it originally. In fact I think you helped me put it on at Tully's house. The first set of these ES bracket I bought were mounted as you stated, without any washers. Just the new factory GM non-prevailing bolts. The bolts pulled right through the bracket holes in a much shorter time than these did. Then I put some grade 8 washers to try and spread the load over a larger area.This obviously did'nt work for me. [img]graemlins/.gif[/img] Sorry.
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