Anytime it hit any small bumps in the road, I get this clunking / rattling noise from the left rear of the car. At first I thought is was the shock, so I changed them, no change. Then...after reading on ws6.com, I came accross this:

What's the best way to fix this and will it cause the rear of my car to sit higher? Or any other suggestions on what to do about this?

 

If that is the problem then do what it says and use rubber hose. Rubber hose will cause your car to sit higher, but depending on the hose you use, probably not more than 1/8" or so.

 

Is this under accel or at cruise?

If under accel then it is your posi locking up.

 

Mine does it too. Sounds like something is loose. I haven't had a chance to check anything though. I know with the car sitting on the ground, if I grab a wheel and pull (making the car shake) it will do it also. I'm just hoping it's not a problem with the diff.

 

Tighten your LCA's and panhard bar and report back if that fixed it or not.

 

It does this no matter what speed I am going. My street is full of potholes and Missouri roads are horrid. So I am constantly hearing it. I'm sure its not the posi. This is a rattling noise, like something is loose. It squeeks rattles and pops depending on how hard the bump is. It almost sounds as if it is inside the vehicle, which is why I thought maybe the shock was loose at the top. Maybe the isolator at the top of the spring is worn out? Like I said it almost sounds like it's inside the car... sounds like something banging against the inside of the wheel well/floor area behind the back seats. I'll get to it this weekend and see if anything needs tightening.

 

I had the same problem....ended up being a cracked shock mount and broken LCA brackets.
A friend of mine also had the same problem and his ended up being a loose torque arm.

 

I've checked everything on mine except the front torque arm mount. Everything on the rear is tight.

 

Anyone have the torque specs for all the rearend stuff?

LCA's - 75-100ft. lbs.............

 

I posted yesterday {same problem} mines on the passenger side,jacked it up push the wheel frt to back{mine is the frt lca mount/bolt.its touqued right,had same problem with stock/now with mine umi's.