Please help - clunking noise from front end - Problem with Diff?

[bryanb]

I recently had a local shop replace my front differential with a used unit in which they installed a new ARB locker and 5.29 gears. The diff swap was due to damage that happened inside my original diff when an axle snapped at the splines. I now have new Genuine Toyota CV axles as well

After taking it off road for the first time since being fixed, I was climbing a hill in 4wd, un-locked on both ends, when it started making a nasty clunking sound. I took video of it. Please let me know if you have any ideas what could be causing it. Axles, diffs, etc?

4runner noise - YouTube

Thanks!

 

[fourwd1]

Looks and sounds like a blown CV joint to me.

 

[bryanb]

Update...

As ridiculous as it may seem, all this noise (and months of headache) was due to the differential stoppers (Toyota's name for the rubberized washers) not being re-installed between the differential mounts and the chassis.

Below is a picture of my truck with the stopper/washer missing and another picture of what they look like installed. Without them, the differential mounts would slam into the aluminum differential drop spacers when the front wheels were under load.

so glad to get it resolved.