What noise are you refering to? The differential itself seldom have problems unless it ran dry of lubrication. If you are having rachettingor grinding noises without the vehicle moving forward, you have a problem with the interediate shaft.
If you had a previous post, you need to reply to that and not create any new post.
This would allow the person attending to you to follow up when notification is received.
Use Hypoid gear oil API GL4 or GL5 SAE90. At bottom of diferential there is a drain bolt, either a 17 mm hex head or a recessed square 1/2 inch bolt. The refil plug is just behind the CV shaft almost level with it horizontally.
June, 3, 2012 AT 8:20 AM
After checking through your other posts, it seems the intermediate shaft has failed or if you ar lucky ehough, either one of the CV joint has falied (remote possibility), or they have been dislodged.
With vehicle on level ground, engage the parking gear and release the handbrakes. If you are able to push the vehicle forward or reverse more than 1 feet, the problems I mentioned above are true.