Originally Posted by tuborg_15

Sorry for the late post. With two little kids and Job I didn't get time till last week to go to the dealership. I had to bear that clunk for this whole time.
So, I went to the dealer, told them my concern and left my 4Runner with them for the day to diagnose.
They called me and told me that my U-Joints needed replacement and also the rear propeller shaft was installed backwards??? I gave a go ahead for the repairs thinking the problem lies with the front driveshaft and differential.But by now I was so sick and tired of hearing that clunk, I was ready to try anything that'll fix it.
The dealership called me again around 3pm saying that it is taking more time than they initially thought and they will deliver the vehicle the next day. The service tech told me that the u-joint flanges had been severely cleaned out. So they had to peen flanges to grip new u-joints better. But they will not charge me for the extra work. Only what they quoted me originally.
So the next day I went to take my vehicle still dreading that clunk.
I sat in my vehicle started it..put it in drive...and slowly started driving..And man o man , I don't remember it driving so smooth. NO CLUNK...I did a stop and go, gear shifts, everything.. No Clunk...and its driving like new now.
Its been two days today and its an awesome feeling to drive it without any clunk. But still at the back of my mind I expect a clunk at every stop. Hopefully It will go away soon... So happy now.

Originally Posted by AuSeeker

Glad you got it fixed!
Thanks for the update, I'm sure it will help someone else in the future!

That being said, I would recommend not using the mechanic that told you it was the diff and transfer case to do any work on your vehicle, now and in the future, he apparently doesn't know enough about these Toyota 4Runner to be trusted to find the real problem.