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Replaced clutch and tob. possible input shaft noise?? need help

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Old 07-30-2014, 10:34 PM
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Replaced clutch and tob. possible input shaft noise?? need help

Ok so after hearing what I thought to be a bad tob 2 years ago when I bought my lnf, I finally had a local shop install my gmpp clutch. Car drives great and everything feels solid. But the problem is I still seem to hear the tob noise. My mechanic says it sounds like an internal trans issue but I am leaning towards a bad input shaft. What do u guys think I should do considering I drove with this noise the whole time before the gmpp upgrade?

On a side note it's a 2008 lnf and the symptoms are clutch out=loud metal sound. Clutch in=no sound. Tob, clutch, new oem lnf flywheel, new slave cylinder line all have been replaced.
Old 07-31-2014, 12:16 AM
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After hours of more searching I'm almost positive it's the input shaft bearing. What else should I replace with that. Also where do I buy the input shaft bearing?
Old 07-31-2014, 02:29 AM
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Keep us updated. I've thought my input shaft bearing was bad for a while now, but my noise is independent of the clutch position.
Old 07-31-2014, 02:49 AM
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Originally Posted by footballplaya3k
Keep us updated. I've thought my input shaft bearing was bad for a while now, but my noise is independent of the clutch position.
What do u mean by independent of the clutch position? Mine is quiet if the clutch is pushed to the floor
Old 07-31-2014, 03:09 AM
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Doesn't matter if I have the clutch in or out. I think my issues is my Brembos.
Old 07-31-2014, 03:16 AM
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Originally Posted by footballplaya3k
Doesn't matter if I have the clutch in or out. I think my issues is my Brembos.
Ahh, good luck finding your solution. The fact that I just got my car back today after a month and I still hear the noise has me thinking of trading it but I owe too much on it and gotta get this fixed. Hopefully my mechanic will cut me a deal considering he did the clutch for 400 and wont accept my payment until I'm satisfied.
Old 07-31-2014, 04:06 AM
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That sucks man. I recently blew my motor so I know what you mean about thinking about trading in haha.
Old 07-31-2014, 10:21 AM
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Morning bump for opinions
Old 07-31-2014, 05:58 PM
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never heard a grind but more like a clicking/chattery noise. could most likely be the input shaft, i had a problem like that running an after market clutch kit. in never got worse though in the 4 years i ran that clutch. i was thinking it was the clutch chatter, but was never able to find out for sure because it didn't break or anything. car shifted fine etc so who knows for sure.
Old 07-31-2014, 09:01 PM
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Originally Posted by turbocharged717
never heard a grind but more like a clicking/chattery noise. could most likely be the input shaft, i had a problem like that running an after market clutch kit. in never got worse though in the 4 years i ran that clutch. i was thinking it was the clutch chatter, but was never able to find out for sure because it didn't break or anything. car shifted fine etc so who knows for sure.
That's sort of the sound I hear. No grinding
Old 07-31-2014, 09:03 PM
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So my mechanic says he cant repair the input shaft because special tools that only trans shops carry can. So looks like I'll be waiting a bit more for a repair.
Old 07-31-2014, 09:39 PM
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a press and puller? lol

sure its not clutch chatter?
Old 08-01-2014, 02:14 AM
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How would clutch chatter sound? This is loud. I will try to get a video tomorrow.
Old 08-01-2014, 06:35 PM
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Curious to see the vid. I have a thread below this one with the same issue. I don't have the editing power to make a good quality acoustically dialed video. What a mouthful!
Old 08-01-2014, 06:41 PM
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Video tomorrow guys. Sorry I work all night.
Old 08-02-2014, 09:28 PM
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http://m.youtube.com/results?q=2008%...n%20noise&sm=3
Old 08-03-2014, 08:38 AM
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Video posted above for opinions
Old 08-04-2014, 11:35 AM
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So if any of u watched the video, u probably see I need a trans. Found a few on car-part and want to know if anyone knows if junk yards ship parts?
Old 08-04-2014, 03:30 PM
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Any help is appreciated.......
Old 08-04-2014, 06:08 PM
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i watched the video on my phone and it's not the clutch, i never heard it that loud. got to be trans related.
Old 08-04-2014, 06:17 PM
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That is a failure of the input shaft bearing.

The part itself is 10 bucks. However, replacing it is another story. The F35 is very difficult to pull apart unless you have special tools and the knowledge.

it does not require a transmission replacement immediately, however, if/when the input shaft fails it will destroy your clutch + pressure plate and probably the bell housing.
Old 08-04-2014, 08:15 PM
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Yup that sounds awful! Try to find an 07SS SC Tranny. I think they are much cheaper and work even better
Old 08-04-2014, 09:59 PM
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I found a few online. Do they(the 4.05) bolt right up to the lnf? Do I need to get retuned to calibrate the speedometer for the new gear ratio?
Old 08-05-2014, 11:20 PM
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As far as I know it bolts right up. As for the speedometer thing I have no idea.
Old 08-06-2014, 12:11 AM
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Wow that's bad, at least I know that isn't my problem lol. Sucks man.


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