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Discussion Starter #1
Will be changing the rear diff oil in my friend's 07 OB 2.5i wagon. Have read a couple horror stories about people cracking the aluminum diff cover while trying to break loose the fill/drain plugs. Hopefully this will not happen; but, if it does, how hard is it to replace the cover? My Subie parts guy said it is very hard because a couple of the bolts go through a structural member. Thanks.

Edit: I found this. Does it apply to the 07 2.5i OB wagon?

http://forums.nasioc.com/forums/showthread.php?t=1408153
 

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The studs on the back cover go through rubber bushings in the rear sub-frame. These, and the support toward the front of the differential hold it in place.

The plugs are often very tight from the factory, but unless over-tightened subsequently, shouldn't be a problem. I don't recall reading about cracked covers here, but it's possible I might have missed them.

I had that problem the first time I checked the level, and solved it using the "jack" method. (See: http://www.subaruoutback.org/forums/66-problems-maintenance/6852-problem-getting-rear-differential-filler-plug-out.html).
 

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Discussion Starter #3
The studs on the back cover go through rubber bushings in the rear sub-frame. These, and the support toward the front of the differential hold it in place.

The plugs are often very tight from the factory, but unless over-tightened subsequently, shouldn't be a problem. I don't recall reading about cracked covers here, but it's possible I might have missed them.

I had that problem the first time I checked the level, and solved it using the "jack" method. (See: http://www.subaruoutback.org/forums/66-problems-maintenance/6852-problem-getting-rear-differential-filler-plug-out.html).
Great info plain OM, thanks a lot!
 
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