I’ve had the loud bang now and then it seams like something is binding up in the drivers front end. My 4wd is silent and everything works fine but now and then there is the loud clunk. Then It goes back to normal. it's defiantly an under a load thing.
Also you'l notice that it happens around 38-48mph 4th or 5th fear depending on the rate of acc. but... not always it's more frequent and repeatable when going up a incline.
I've replaced the IWE's, and replaced them again because one was faulty, replace the IWE solenoid, and check valve. Changed the fluid in front and rear diffs as well as the TC. Noticed no metal.

I bought it used out of warranty but I’m my own mechanic.

im my video I have 4-5 examples. Best heard at 41-43 seconds.

 

Does temperature play a role? I have the same clunk in my ‘14. Only happens when it’s below freezing.

Does it happen when you accelerate from a stop?

 

I’m going to lean towards no. I was on a muddy road last summer and I thought I heard something just like it. I chalked it up as ABS kicking in and a bad IWE. Now it hasn’t been above freezing for 3 months so I can’t say otherwise.

 

I have a 2013 and lately is doing a hard shift from 4th to 5th, but seems to depend on the rpms. If driving slow it tends to do it. At higher speed shifts normal. Is that what you are experiencing?

I had the transmission recall done for the computer. How about you?