hi I think I am experiencing the same jolt. I think my problem lies where the rear shaft meets the carrier bearing. I have a two piece shaft and I think the where the front and rear shafts meet is where my clunk is. there is a grease fitting on the rear shaft where they meet so I will pack it full of grease tomorrow with the grease gun.

 

jssmitty07, I tried looking a few places, but not sure I was finding the right tsb. I called my dealer and they said it'sthe driveshaft slip yoke and the new lubricant partnumber is #12371287. There were so many tsbs I told him not to spend an hour going through them.
Hope this helps!

 

Thanks tonzmn...I appreciate your help. How much do I owe ya? Have a blessed day!