2005-2009 Mustang Information on The S197 {Gen1}

Changing rear diff fluid.

Old Aug 4, 2017 | 01:15 PM
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From: Down south in Dixie
Changing rear diff fluid.

OK boys and girls, I have a small drip from the rear diff cover on the '06. As I don't like little drips I gotta fix the dang thang. Any tips from you good folks with more experience than I on this endeavor? Any tip, big or little, will be most appreciated. Thanks.

Jim
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Old Aug 4, 2017 | 05:15 PM
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Use a drip pan. Remove bolts from the cover but leave a couple on top, just loosen them up. Pry the bottom of the cover until the oil comes out and then remove the top bolt(s). This will help instead of prying the cover off and having that gear oil go everywhere. Clean up the flanges and apply new rtv, be sure to get around all the bolt holes. If you want you can use thread sealer on the bolts also. Then fill it up with oil and friction modifier. I've got a little tube that screws on the oil bottle and it has a one way check valve. This might help you fill it without making a mess. Also when you jack the car up, support the car from the frame and let the axle hang. This too will give you a little extra room to work with. When the suspension is loaded the panhard bar and stuff might get in the way.

Last edited by 07 Boss; Aug 4, 2017 at 05:16 PM.
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Old Aug 5, 2017 | 11:22 AM
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Thanks Boss. It'she first time I've done this job, all the info does help.
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Old Aug 6, 2017 | 08:55 AM
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Originally Posted by wanted33
Thanks Boss. It'she first time I've done this job, all the info does help.
Its easy, but that friction modifier stinks. Don't spill any in your hair.
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Old Aug 6, 2017 | 12:11 PM
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Originally Posted by 07 Boss
Its easy, but that friction modifier stinks. Don't spill any in your hair.
No problem, ain't got no hair thanks to my Mom's side of the family.
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Old Aug 7, 2017 | 06:33 AM
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What gear oil did you buy to put in there?
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Old Aug 7, 2017 | 07:18 AM
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Originally Posted by Glenn
What gear oil did you buy to put in there?
Who me? I have an Auburn Pro diff in there so I used whatever dino oil they recommended. Can't remember the weight but I think it was Lucas. I used to run Royal Purple with an extra 4 oz of friction modifier when I ran the stock rear end.
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Old Aug 7, 2017 | 08:44 AM
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Thanks and to the OP what are you going to run?
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Old Aug 7, 2017 | 09:57 AM
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From: Down south in Dixie
Originally Posted by Glenn
Thanks and to the OP what are you going to run?
I have no idea right now Glenn. I'm open to suggestions though. Being retirement I need to find the time to get the job done. If you're retired I'm quite sure you know what I mean.
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Old Aug 7, 2017 | 01:34 PM
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I used this stuff http://www.autozone.com/greases-and-...47409&cmpid=cj
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