Gregg Lee

Surely by now you have checked, but sway bar end links or body mount. More likely to occur on one wheel bumps, which torque the bar, than on two wheel bumps (or trunk bounces) which don't.

I'd look at the body bushings to see if a bracket is slipping up and down. Or if a bushing is slipping out of the bracket.

humbucker87

Finally! Finally! Finally!

It took me taking off the entire rear suspension (control arms, axle, hub, sway bar, etc). I put the jack under the subframe and it still made the noise! Made sure all subframe bolts were torque to spec.

Went and made sure all my roll bar bolts were tight (had already done that before) and they still were.

But!....I also have a bulkhead replacement bar, and even though every bolt was tight it had somehow shifted to were it was just hitting the rear bump for the fuel tank under certain body flex.

Of course, looking back it makes so much sense...
-noise sounded like it was in the cabin
-happened when flexing both sides of the suspension but more so the right side

Anyways, I hope this can help someone in the future...thanks to everyone who helped with suggestions. If nothing else, I learned a ton about the rear suspension...now time to schedule a rear alignment to get things back in spec.

Thanks again!!

Gregg Lee

What is a bulkhead replacement bar?

humbucker87

It replaces the main bulkhead which is what the seat belts, center console, and some other plastic bits bolt to. If you want to run both harnesses and 3 point belts at the same time the bulkhead replacement bar (sold by Hard dog or RSG) allows the two to pass each other without interfering.

dmbiker1

I'm wondering if the rear suspension allignment resolved this problem for you? I believe I have the same problem and sound as you are/were having. Is there any way I can prove/disprove your theory without taking my entire rear suspension completely off? Thanks for any additional info you can offer.

Soviet

Is your bulkhead bar fix still holding strong?

S2KandCBR