Calling all land roovvvvvvvvvvvvvvveeeeeerrrrrrrrssssssssss,
When driving 30-40 mph I hear a clunk sound under the vehicle. I speed up to 30-40 mph and take my foot off the pedal, as the vehicle starts to decrease in speed I hear a clunk under the vehicle. What is that and how do I fix it?
Thanks

 

I spent a number of hours today checking out a drive line vibration. You are going to have to get undr the truck and look for warn u-joints or tired bushings. Usually these are fairly easy to find and repair.
Mike

 

Please help me under stand, How teh ball or ujoint works and how it can create that sound or better yet what does it do? Only why I ask is because when I give thetruck gas you can fell and hear the clunk. If it was teh ball or u joint appx. how much to fix?