Clunk going into forward/reverse and vibration on acceleration?

Hi,

If you get noise and vibration, my first suspect is a worn universal joint. I'm not sure if you checked them, but that is certainly where I would start.

Take a look at this link. Note the link is to help diagnose a universal joint issue and explains in general how to replace one.

https://www.2carpros.com/articles/comprehensive-guide-to-checking-and-replacing-an-automotive-drive-shaft-u-joint

Let me know what you find or if you have other questions.

Take care,

Joe