2000 Outback A/T Front Diff "Broken?" - Subaru Outback - Subaru Outback Forums

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Old 12-08-2011, 06:04 PM   #1 (permalink)
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Default 2000 Outback A/T Front Diff "Broken?"

Have a 2000 Outback wagon, automatic, low 119k miles, nasty clunking from front. Hoping it was broken axle or junk axle but not axles, clunk speeds up as you speed up. Axles out, One clunk per revolution lets say. Figure its the front diff. Can you replace front diff, better off with exchange tranny, etc. Not sure what to do. Thanks for any help. In Calif. if someone knows of or has something to help. 714 751 2464 Thanks!
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Old 12-08-2011, 06:06 PM   #2 (permalink)
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And your sure its not a CV or tire issue? Jumping to a bad diff would be a stretch given they don't really fail that often. Was the gear oil changed in it at all during the last 100K.
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Old 12-08-2011, 06:09 PM   #3 (permalink)
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How about the drive line support bearing those can get loose and make some nasty clunking. Also my exhaust made some nasty clunking when I managed to bend it a little There are so many things I would look into before a diff and if you can drive it without some really horrid sounding grinding sounds or the car simply doesn't move then a broken diff would be at the top of my list.
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Old 12-08-2011, 07:56 PM   #4 (permalink)
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Front diff's do fail, not common but not rare. It's usually fairly obvious and not that hard to confuse with something else.
Is it really loud and has it gotten noticeably worse?

You sound sure it's trans related:
Flexplates can crack, I've seen that even less than front diffs but it happens. Has the engine ever been removed (headgaskets replaced)? Not that that has to happen for them to crack...

Was the front diff gear oil ever changed? How many miles?
Drain the oil and check for bits/shavings.

How did you rule out the axles?
Not wheel bearings?
Definitely centrally located?
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