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Old 06-14-2017, 10:33 PM   #1
wazzu70
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325ix/325i LCA geometry

Does anyone know if the outer ball joint on the ix lower control arms is in the same place as the "other" lower control arms? Obviously the inner ball joint is in a different location due to the forward mounted subframe.

I cant find any side by side pictures or any measurements online.

Thanks!
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Old 06-15-2017, 05:18 AM   #2
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I don't think it is, but I don't have any proof..
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Old 06-15-2017, 05:30 AM   #3
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Same boat here. I assume they are different but I am curious if the outer point is the same.
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Old 06-15-2017, 08:12 AM   #4
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If i remember right, when they was selling to me wrong lower control arms.
That outer ball joint is more outer, then normal. I mean ix has little wider rail gauge, if compare to rwd.
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Old 06-15-2017, 09:38 AM   #5
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That makes sense. I was thinking the additional offset was related to the different hubs, but the whole assembly might be moved outward as well.
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Old 06-15-2017, 10:22 AM   #6
The Dark Side of Will
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The whole geometry is way different. The RWD outer ball joints are much closer to the height of the wheel axis, for example.
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Old 06-16-2017, 04:49 AM   #7
notanawdix80
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They are different. IX LCA's have a little angle where the ball joint goes.





In the images you can notice the little diference
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Old 06-16-2017, 07:50 AM   #8
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If anyone happens to have a trashed ix LCA thats taking up space I would pay for shipping to do a side by side compare. I looked on ebay and the ones on there are listed for a mint so maybe they are all worth a lot.

The nerd in me wants to know the differences between all E30s and for some reason this question dawned on me and I can't find a specific answer.

Thanks for the similar pictures notanawdix80 that does help show the outer ball joint might be angled a little differently. The other LCAs seem to have an angle to them as well: https://www.ecstuning.com/b-genuine-...t/31121127725/
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Old 06-16-2017, 09:58 AM   #9
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Quote:
Originally Posted by wazzu70 View Post
If anyone happens to have a trashed ix LCA thats taking up space I would pay for shipping to do a side by side compare. I looked on ebay and the ones on there are listed for a mint so maybe they are all worth a lot.

The nerd in me wants to know the differences between all E30s and for some reason this question dawned on me and I can't find a specific answer.

Thanks for the similar pictures notanawdix80 that does help show the outer ball joint might be angled a little differently. The other LCAs seem to have an angle to them as well: https://www.ecstuning.com/b-genuine-...t/31121127725/
I'm sorry, the pics i found are crap.

The angle on the IX lca is bigger and downwards. The normal E30 lca has less angle and it is upwards.

I would love to have better pics of my lcas, i've recently rebuilt my ball joints because the car was behaving like shit. Can't wait to order new ones
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Old 06-18-2017, 03:12 PM   #10
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Quote:
Originally Posted by wazzu70 View Post
If anyone happens to have a trashed ix LCA thats taking up space I would pay for shipping to do a side by side compare. I looked on ebay and the ones on there are listed for a mint so maybe they are all worth a lot.

The nerd in me wants to know the differences between all E30s and for some reason this question dawned on me and I can't find a specific answer.

Thanks for the similar pictures notanawdix80 that does help show the outer ball joint might be angled a little differently. The other LCAs seem to have an angle to them as well: https://www.ecstuning.com/b-genuine-...t/31121127725/
I think i have 2 (or 3) of one side, i keep them for rebuilding so i dont really need that many of them.
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Old 06-18-2017, 06:08 PM   #11
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I might have to borrow one to compare to mine and solve this once and for all
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Old 06-19-2017, 07:52 AM   #12
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This sound awesome..
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