thunk after stopping

[Hakabo]

it seems to happen whenever i come off the brakes. its like a thunk. it doesnt really lurch forward (any more so than just letting off the brakes) but there is a noticeable thunk from somewhere under the vehicle.

 

[lofreqjeff]

it seems to happen whenever i come off the brakes. its like a thunk. it doesnt really lurch forward (any more so than just letting off the brakes) but there is a noticeable thunk from somewhere under the vehicle.

I just recently purchased a 2006 4Runner with 88k miles on it that did that. When I took a look under the front, it was obvious the lower control arm bushing where shot so I replaced them and it got better, but didn't go away. The truck had this feeling I can only describe as 'heavy' when I was breaking. The I noticed some fluid coming out of the shocks. Took it to get looked at and was told the shocks were pretty much toast. Since I was planning on lifting it at some point, I went ahead and had the whole suspension upgraded to Bilstein shocks/OME springs and now it drives like a dream!

Not sure if that helps you, but that has been my experience so far.

 

[Hakabo]

i had somewhat of the same symptoms in my tacoma - there was slop in the drive axle that would kind of bind under stress. i have yet to get under it and look. are there zerks in the drive axle on an 08 4runner?

 

[jstanwood]

This is a well-documented "feature".
Here is the thread that I found on the main pre-purchase sticky thread.
Zerk Fitting Pics

My 4R is new-to-me, and does this, too.

 

[Izlu]

That "thunking" comes from drive axle slip yoke being low on grease.

That's a well known issue as mentioned already, there's even TSB on this.

There are 6 zerk points on drive axle if my memory serves me correctly. Keep drive axle greased and thumping will to away