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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHM030 Sway Bar - Incorrect Part?
Leading reported evidence
Check sway bars - no green sticker or marks
Performed · outcome unconfirmed
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0
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0
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
I checked the sway bars - no green sticker or marks on them.
Leading evidence: 'Check sway bars - no green sticker or marks' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check pm shortly' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
I purchased a set of used M030 front and rear sway bars from an RL member a while back.
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Performed · outcome unconfirmed
I used the stock drop links and it was a simple swap.
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Performed · outcome unconfirmed
I've used Turbo model rear sway bars on my C2 before as a reference without any issues.
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Suggestion
OP may be able to use the C2 bar on his C4 only if he uses the curved swaybar end links supplied by various aftermarket companies but it's more trouble than it's worth.
Use curved swaybar end links supplied by various aftermarket companies
No successful repair reported for this finding.
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Read evidence and context
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Suggestion
OP may be able to use the C2 bar on his C4 only if he uses the curved swaybar end links supplied by various aftermarket companies but it's more trouble than it's worth.
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38 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi folks,
Vehicle in question is a 2004 996 C2 coupe in manual. I purchased a set of used M030 front and rear sway bars from an RL member a while back. Edit: This came off a C4 coupe with manual transmission.
Car is at the shop today and said the rear will fit, but the front won't? Is something wrong? The bars came off what I believe is a C4 coupe with manual transmission. Top two bars are the front, the black one being the M030 sway bar. The one in the middle is stock. Thanks!
Mike
C2 and C4 sway bars are different. Although some have managed to get aftermarket C2 or GT3 front sway bars to work with C4/C4s by using C shaped end links, I don't think anyone has gone the other way of fitting C4 to C2.
OK, here's what I've got. I believe these to be M030 sway bars for a C2, but I don't know that for sure so I'm hoping someone can confirm whether bcrdukes and I have what the other needs.
Thanks to anyone that can help us figure this out.
I can't quite tell the difference - what is unique about the front sway bar between the C2 and C4?
Also, my rear sway bar looks a bit funny compared to tooloud10's. Is something wrong?
Look for a green dot on each sway bar. M030 sway bars have green dots on them and both are fatter than the stock ones. The rear sway bar looks strange that the middle is bent. The M030 sway should look straight in the middle section. The front bar also doesn't look fatter than your stock bar.
https://rennlist.com/forums/parts-ma...sway-bars.html
http://www.carnewal.com/products/P96...ension-Package
I noticed this too on second glimpse but was looking at it on my phone so wasn't sure if my eyes were playing tricks on me.
Look at the ends where the sway bar end links attaches to. The C4 is curved while the C2 is straight.
Yea, I thought my eyes are playing tricks on me too at the beginning but no way a straight can appear so bent.
Actually the stock C2 front sway bar ends should be curved, stock or RoW M030 (please see the middle bar in the OP's photo) and also the two links I included above.
More photos of C2. You can see the front bar ends need to curve to clear the lower contrl arm
https://rennlist.com/forums/996-foru...with-pics.html
The photos of Turbo (shared by C4). You can see the front bar ends are straight and it uses a longer tie rods to connect to the struts. Also why the rear sway is bent in the middle
http://sharkwerks.com/porsche/996-tu...uspension.html
It's not clear to me at all. Seems to be better off investigating more thoroughly first before you trade or get any new bars as there are a few variations.
BTW, your front bar and tooloud10's front bar look identical?
Ahsai,
I checked the sway bars - no green sticker or marks on them. The original part number/stick has been rubbed off due to wear/tear.
I believe you are right - the fronts look pretty much identical. I think what we can do is trade the rears but this requires much more sleuthing/detective work.
Damn I'm on my phone again but are you referring to the top swaybar out of the three posted by OP?
I guess I'm confused as I thought the second bar was what he bought with the first bar being his original.
What I meant by curve is the C4 bars are curved to clear the control arms.
These are some quick pics I can find that has a better angle to show difference.
C4:
Aftermarket C2 but shows that it's straighter towards the ends.
As for the rear bar having a bend in the middle, I've seen that before on some bars. I'm pretty sure this may be cross-referenced to other models that have a Mezger based motor for clearance issues but the attachment points are the same and should work on non-mezger motors. I've used Turbo model rear sway bars on my C2 before as a reference without any issues.
Ok, so in summary, both C2 and C4 use a curved front bar to clear the lower control arms and a straight bar at the rear.
C4s/turbo use a straight front bar and longer tie rods and a rear bar bent in the middle.
If the OP uses the bent rear bar, it will look odd as there's nothing to clear where the bend is. The OP may be able to use the front bar with longer tie-rods.
Did I get everything right?
No.
The C2 and C4 bars are clearly different per my pics above. You can see they are curved differently. The C4 spindle/control arm setup is a bit different since it has to accomodate the front axles.
I agree from a looks perspective on using the bent rear bar but functionally it will still work.
OP may be able to use the C2 bar on his C4 only if he uses the curved swaybar end links supplied by various aftermarket companies but it's more trouble than it's worth.
He's better at trading the other guy if they both in fact have M030 setups or buying a m030 C2 specific front bar.
Thanks for clearing this up, guys.
I'm not really sure what to think of these sway bars anymore. I have no real way to verify they are in fact M030 bars or not.
Yes you do. Just get some digital calipers to measure them. Older bars may have marks worn off but you can always measure the diameter. If you don't have a digital caliper, head over to your local Harbor Freight or auto store. Shouldn't be more than $20 and you can use them later to measure various things like rotor thickness so you aren't unnecessarily replacing them based on mileage alone.
Actually the C2 front bar also curves the same way as the C4 bar in your photo Look at this one taken off from a C2 and I have a C2 bar lying on my garage floor now so I can confirm it curves
https://rennlist.com/forums/parts-ma...sway-bars.html
The OP has a C2 .
I think we maybe talking about two different kind of front bars. The one I took off my car looked like TooLoud's swaybar he posted and also the top swaybar in the OP's pic. It's possible that the C2 has both types of bars. I have a MK1 and mine came with the non curved one. I've also taken a friend's bar off and his was same as mine.
I do see that there could be 3 variations (awd, manual, auto) as there shows different part numbers for them.
Edit: the one in the classifieds appears to be for an automatic transmission car so maybe hence the curve?
OP's second swaybar down in the pic should fit TooLoud's C4 car. The pics that TooLoud posted should fit OP's car. That's all I was saying.
Ahsai, you have a mk2 c2 right? How does your bar look?
Mine is an mk2 and my front bar is curved. The OP also has an MkII. Now I see that OP's stock front curved bar may fit Tooloud's C4 as you explained but I still think the OP needs a curved front bar, unless he wants to use the non-curved one with non-stock tie-rods.
Man, this is getting complicated haha
haha sorry guys, I didn't mean for this to spin out of control.
Ahsai is correct - I need a curved front bar. I do not want to use a non-curved front bar with non-stock tie rods. I was genuinely hoping for a remove and replace, bolt-on turn-key solution but unfortunately, this is not the case.
No kidding. haha
You can use either one, you just need to match up the corresponding endlinks is all. I've seen quite a few of the non-curved bars on C2 models and am currently using a straight version myself on my C2. The GT3 bars for example, do not have any curves in them towards the ends as they are originally made for the 6spd manual 2wd models.
Hey guys......bcrdukes bought the sways from me. And yes they came off of my old C4. I used the stock drop links and it was a simple swap. They came with the X74 kit I bought from Gert and are ROW M030's for a C4. When I sold the car I had an H&R front adjustable sway with a GT3 adjustable rear bar with tarett links.
I just came across this thread. I really thought that they should just bolt up....but I guess not. bcrdukes if you want me to take the front back I will make good on it like I said in our pm's a while ago.
This is what I love about Rennlist - people who live up to their word and just a great bunch of people!
Pete - I appreciate the offer, but I feel that it's unfair to you. It took me over 6 months to finally get to this only to find out it wasn't going to work. This isn't your fault but you are a stand-up man and I appreciate the kind offer!
I'm sure we can somehow come up with a win/win situation here!
No worries.....a real win would be for someone with a C4 to speak up and take it. PM me with your thoughts. I'm also thinking that tooloud already has the correct sway.
This is a source reference. Confirm exact model applicability in the original material.
