Clunk/knock/bump "sound" coming from right rear. Help.

[Craig Almaguer]

Hello all. New member here. I have a '96 110 300 Tdi. I'm getting a clunk/knock sound coming for the right rear, and for the life of me can't pin point it. New OME HD springs, Bilstiens. I was getting a REALLY horrible clunk coming from the dead and tired self leveling Bouge Unit (since removed), and greatly improved THAT aweful clunk sound. it's gone. However, still hearing the other. typically when the truck "drops" off a speed bump, or edge of curb. I've intentionally used these obstacles to try and locate the culprit. Off road it's more challenging to locate as I'm usually going much slower so it's difficult to make happen. I've emptied ALL of the tools and extras from the rear, as they can make a clunk sound once in a while if going too fast over bumps. Thoughts?

Many thanks!
Craig

 

[Napalm00]

rear a frame ball joint or bushings. Grab a a jack and a big pry bar, get youtube to see the areas to check.

 

[Shearpin]

A-frame ball joint is a good suggestion.

Failing that - jack up your right rear wheel and rotate to check for play at the rear hub flange. Wear at the flange can cause a clunk when torque is removed then introduced to your drivetrain.

I have also had OME HD springs that require some grease and a bit of coaxing to properly seat in the top spring mount. This would produce a clunk whenever the spring was loaded and unloaded. If you look up in top mount on your frame you’ll be able to see if it is seated properly...

 

[chris snell]

Check your trailing arm bushings, too. Those are pretty easy to check. Just grab one of the arms with both hands and yank it around and see if it moves and/or makes a sound.

 

[jymmiejamz]

Did you have this issue before swapping springs and shocks? Could the shocks be topping out?

 

[rocky]

Or the shock bushing failed. BTDT.

Also remove the spare if it’s hanging on the rear end.

 

[Craig Almaguer]

All good responses. Ball joint for A frame is new/replaced. it sounds like it's coming from the "right side" rather than center. maybe trailing arms, but I've beat on them and yanked as well. I will keep you all posted. Thanks!!

 

[Craig Almaguer]

A-frame ball joint is a good suggestion.

Failing that - jack up your right rear wheel and rotate to check for play at the rear hub flange. Wear at the flange can cause a clunk when torque is removed then introduced to your drivetrain.

I have also had OME HD springs that require some grease and a bit of coaxing to properly seat in the top spring mount. This would produce a clunk whenever the spring was loaded and unloaded. If you look up in top mount on your frame you’ll be able to see if it is seated properly...

yeah, intersting. this is my 8th or 9th set of OME HD springs (ive used on all my rovers) over the years. I'll double check this.