Well actually the Top Speed knock off, but here is the question. I was careful to follow the installation instructions and everything seems to be installed correctly, nothing feels lose. However at 37-40mph I hear what I can only describe as a metal drone coming from the back. Oddly enough you can only hear it at the speed mentioned above. I checked it several times to make sure nothing has shifted or loosened up, so I'm at a loss here. I'm almost tempted to take it off, spray the damn thing with Dynashield and put it back on. Has anyone experienced this? I would appreciate any suggestions.

Thanks

 

Could be the fact that's it a poorly designed knock-off fake.
Was the car on level ground when you installed it? The sway bar hardly moves, especially when going straight. Sounds like a wheel bearing problem, or something was left loose and it's rubbing. Could also be the exhaust piping vibrating, if you messed with it recently.

 

Anything is possible I suppose, but I find it odd that the noise occurs at just that speed. The noise if very faint and is sometihng you have to listen for. I checked the exhaust and that seems to be on solid as well. As for the possibility of the wheel bearing problem, I suspect thats my culprit in a different sort of noise: I'm hearing (obnoxious loud road noise that refuses to go away, it is independant the tires I'm running and isnt affected by the RPM) Some time this week I think I'll re-pack the bearings in hopes of making that sound go away.
I'm very particular about noises in my car, and only worry about those I can't account for

 

Stuck rear caliper?

 

I don't believe so, as both rear wheels spin freely.

 

I have the "real" stillen RSB and haven't had that problem. One thing is make sure you did not put the bar on upside down. There is a slight downward curvature to the bracket but I think it fits upside down, but might just slightly actually rub the axle if its upside down. This could cause vibration I suppose.

Could it also be that you pinched a brake line with the mounting brackets on the control arm, and one of your rear calipers is rubbing the rotor?

Only other thing I can think of is since its a knock-off, maybe the sway bar, for some reason, gets a harmonic resonance (due to the fact it may be hollow) at certain speeds (i.e. the harmonics of the exhaust make it vibrate just so to create a noise). Longshot, but who knows....

 

Perhaps this is something to consider as well. I'm not entirely sure whether the thing is hollow or not, the bar is approximately an inch and a half thick and does feel pretty solid, definitely not light. Just to be on the safe side though, I may put a couple of pieces of dynamat extreme on it, or spray it down with dynashield before I put it back on.
I'm also fairly certain that its not upside down as it looks exactly like what they show in the installation instructions (unless somehow those a wrong.) I do have a question for you though, on yours, how much space did you have between the bar and the axle?

 

I just went out and measured, and it looks like around 1/2 an inch or a little less. But its dark and I just used a measuring tape, and the car's parked on an incline, so that might affect how close I am...I recall there was about a finger's-width clearance when I first put it on.

 

Hmm, that may be my problem. I have less then 10th of an inch on mine. Going to have to see if I can adjust it tomorrow. Thanks for the help.

 

When I installed my Stillen bar, it had it too far forward and I got some vibration noises. I shifted it rearward 1/2 inch and the noises went away. Apparently the bar will rub on the cross link.

 

Sorry, I have to correct my previous post. I did this fix 6 months ago and got forgot what happened. I happens at my age....

The correct info is:

When I installed my Stillen bar, it had it too far to the rear and I got some vibration noises. I shifted it forward 1/2 inch and the noises went away. Apparently the bar will rub on the cross link.

 

check to make sure it is not knocking against the lateral link behind the rear axle beame mine was u have to use different adjust the sway bar futher foward one hole should do it