Hi All -

First of all this has been a great resource for my project LR3. I am new to Land Rovers in general but so far so good. Mine has approximately 175,000 miles and has seen better days.

I have a pretty substantial vibration/rumble under throttle. I assumed this was the carrier bearing on the driveshaft but have replaced it (the entire driveshaft) and it continues.

I know its not tires as it is only under throttle.

It occurs at all speeds. I can drive it fine, but at highway speeds it get very loud.

It sounds like it is coming from the rear and I don't feel it through the steering wheel. (Can you remove the front driveshaft and drive safely?)

My initial thoughts are it could be the axles? On a previous project (Tahoe) a transfer case was slightly loose but only would shift under load and would cause the same issue. Im hoping that it is something like this? Perhaps a common issue I didnt catch by looking through the forums.

Thanks for any help!

 

As I understand, this vehicle is All Wheel Drive (AWD) ALL the time, so removing the front driveshaft and driving it will likely cause some kind of drivetrain damage unless you can get the drive train (transfer case/transmission/terrain response) computers to ignore the information coming from the wheel speed sensors (all 4 wheels), which is unlikely. Probably the best course of action is to first check the individual wheel bearing assemblies for play and if they are OK then disconnect and inspect the u-joints on that driveshaft you have not replaced (front?). I am sure others more knowledgeable than me will chime in soon, good luck...