differential fluid

Hey Jeepers. 2005 Rubicon TJ, Auto w/ 152k. Here is my issue: Lately I've been feeling a loud clunk when turning namely left. Well it's more of a snap feeling and sound. So. The other day I was driving home and the "rear lock" light began flashing on the dash. I pulled over and this stopped...

These instructions are not meant to replace anything that a service manual or owner's manual requires you to do. I occasionally get an e-mail, or a posting appears on a forum, concerning how to change differential fluid. This is necessary maintenance for anyone that 4 wheels on a regular...