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Ball Joint Replacment How-To

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Old 10-01-2006, 11:43 AM
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Default Ball Joint Replacment How-To

Required Parts:

8N0 407 365 A or 8N0 407 365 B ($78 from www.1stvwparts.com ) - may or my not come with all the required nuts, check with them. You can reuse the old nuts if you need too, but new ones would be prefered.

Required Tools:

Lug wrench
Jack
Jack Stands
16 mm Wrench
18 mm Wrench
Ball Joint Splitter tool (see Photo 7 at the link)
15 mm Wrench
Torque wrench with 15 mm socket

The ball joint is item #10. Nuts #11, #12 come with the replacement part:

<img src="http://images16.fotki.com/v352/photos/4/435091/4092571/FrontSuspension-vi.jpg">

Here is the old ball joint, determined to be worn by grabbing the wheel on the jacked up car, and rocking up and down:

<img src="http://images19.fotki.com/v19/photos/4/435091/4092571/DSCN7997-vi.jpg">

As always, the right tool makes the difference. Here is a ball joint removal tool in action:

<img src="http://images19.fotki.com/v19/photos/4/435091/4092571/DSCN8007-vi.jpg">

After the joint is split:

<img src="http://images16.fotki.com/v351/photos/4/435091/4092571/DSCN8010-vi.jpg">

Comparison of old and new components:

<img src="http://images16.fotki.com/v352/photos/4/435091/4092571/DSCN8012-vi.jpg">

New part in place:

<img src="http://images16.fotki.com/v351/photos/4/435091/4092571/DSCN8022-vi.jpg">

Not a difficult job at all, should take under two hours your first time, under one the next time.

Also, once you are this far, you might as well slip in some <a href="http://www.modshack.info/defcon.htm"> DEFCON</a>s!

Full write-up and descriptions in my Fotki at the link...<ul><li><a href="http://public.fotki.com/mcphill/audi_stuff/maintenance_items/ball-joint---coming-soon/">Ball Joint Replacement Fotki</a></li></ul>
Old 10-01-2006, 11:48 AM
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Nice job. Looks like a generic "BJ" removal tool, or is it 'Audi specific'?
Old 10-01-2006, 11:49 AM
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Generic. I got soaked at MAC tools, you can get it at JCWhitney for under $20.
Old 10-01-2006, 11:50 AM
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what I thought. Thanks. JCWhitney??? haven't used them since the 70's :-)
Old 10-01-2006, 11:53 AM
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Excellent, Mike. I'll be using this soon.
Old 10-01-2006, 11:53 AM
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Default I have known of them for a long time, but also never bought from them. Found this tool

there for very cheap, though (it is linked in my Fotki, photo 7). I know a few Jeep friends who use them a lot, I just never have found much useful stuff there. Wish I had bought there, as it is MUCH cheaper than the MAC tool I got, and includes a tie-rod removal as well. Oh well, live and learn ; )
Old 10-01-2006, 11:56 AM
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Now that you live "out west" what's your tool loaner service cost - a good bottle of wine? ;-P
Old 10-01-2006, 12:39 PM
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Default Looks like your alignment may be out now

from that pic it looks like you are tightening up the ball joint to the lower control arm off the previous marks. That will throw your alignment off.

Not to be a PITA, but it would sure suck to wear out a tire before it's due.
Old 10-01-2006, 01:52 PM
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Default Thanks for the warning, but it is not an issue right now. I am doing a ton of other work, and will

be getting a full alignment and corner balance once I am through. Note also, though, that the new nuts have a "hex shaped" washer, where the OEM ones were round, so the pencil marks will never line up exactly right.
Old 10-01-2006, 06:33 PM
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Nice--did you add to the FAQ?


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