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Old 07-07-2014, 11:41 PM   #1
pb21
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driveshaft wont reach diff??

hey
I have a 2000 323i. I just replaced the guibo and CSB and when attempting installation I could not get the diff end to come close enough to engage the bolts(with the transmission side bolts barely threaded onto their nuts. I tried jacking the trans/diff but that didn't work. I've tried everything I could think of but nothing has worked. When we put the 2 halves of the drive shaft back together after replacing the center bearing, my buddy tightened the nut on the shaft very very tight. I didn't think anything of it at the time but it seems to be the only thing I that would cause this problem. Is there any way the driveshaft could be shortened too much if the 2 halves are screwed in too tight? Any ideas how I can get the drive shaft to reach properly? Any help is greatly appreciated.
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Old 07-07-2014, 11:58 PM   #2
havnfun328
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The nut your buddy tightened is on a splined shaft that adjusts the length of the driveshaft. Loosen it and you should be able to make it fit. When the guibo and diff ends are tight then retighten the nut on the spline.
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Old 07-08-2014, 12:02 AM   #3
pb21
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That's what I was thinking. Thanks for the help. I really needed that before going and buying a chain vice grip to loosen the damn thing. That's what he used to get it on and it worked pretty damn well. A vice wouldn't cut it and neither would a few friends holding it still...
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Old 07-09-2014, 10:58 AM   #4
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Since that happened... Did you mark the driveshaft before you took it apart so it would go together exactly the same? If it got reassembled with the halves rotated in relation to each other you could get a vibration.
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Old 07-09-2014, 11:26 AM   #5
WDE46
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Quote:
Originally Posted by havnfun328 View Post
The nut your buddy tightened is on a splined shaft that adjusts the length of the driveshaft. Loosen it and you should be able to make it fit. When the guibo and diff ends are tight then retighten the nut on the spline.
That bolt bottoms out and only keeps the shaft from extending too far. This advice is incorrect.
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Old 07-09-2014, 11:36 AM   #6
pb21
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I was able to get the driveshaft back on. Yes the 2 halves were lined up properly wen we reassembled it. Now when i start the car and put it into gear the dsc light comes on and when you give it alittle gas (with the whole car still being in the air) it hesitates with no normal rpm build. Why is my driveshaft messed up? Any suggestions?
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Old 07-09-2014, 11:39 AM   #7
WDE46
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What else did you do to the car?

I'd put it on the ground and drive it.
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Old 07-09-2014, 11:55 AM   #8
pb21
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The transmission is whining when the clucth is released and there's definitely something wrong with the whole setup (driveshaft transmission differential). It does not sound right at all. I haven't done anything else to it. Just changed the guibo and center bearing.
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Old 07-09-2014, 06:59 PM   #9
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Quote:
Originally Posted by pb21 View Post
I was able to get the driveshaft back on. Yes the 2 halves were lined up properly wen we reassembled it. Now when i start the car and put it into gear the dsc light comes on and when you give it alittle gas (with the whole car still being in the air) it hesitates with no normal rpm build. Why is my driveshaft messed up? Any suggestions?
Press the DSC button to disable it. What you're doing by giving it gas while it's in the air is to the computer exactly like serious wheelspin. The front wheels aren't turning but the rear are and it's applying the brakes and cutting throttle in response. The system is working as designed.
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Old 07-09-2014, 09:36 PM   #10
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Originally Posted by Tangent_ View Post
Press the DSC button to disable it. What you're doing by giving it gas while it's in the air is to the computer exactly like serious wheelspin. The front wheels aren't turning but the rear are and it's applying the brakes and cutting throttle in response. The system is working as designed.
^This. With the wheels in the air and the car in gear the DSC is seeing the rear wheels turn and the front wheels stationary. Car has no idea it's in the air, it's assuming you're a messed-up driver doing messed-up things !
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Old 07-09-2014, 09:38 PM   #11
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Originally Posted by pb21 View Post
I was able to get the driveshaft back on. Yes the 2 halves were lined up properly wen we reassembled it. Now when i start the car and put it into gear the dsc light comes on and when you give it alittle gas (with the whole car still being in the air) it hesitates with no normal rpm build. Why is my driveshaft messed up? Any suggestions?

Sounds exactly like dsc activating
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I am going to install M3 fender grill on my 323ci.
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IMO, the euro clear corners looks too aftermarket/ricey.
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This 323 would most likely handle and drive better than a stock e46 m3.
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Old 07-11-2014, 12:51 PM   #12
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You are all correct. The dsc was taking over. I put the car on the ground and did a very short 10ft long test drive (as the reason for my transmission whine was a serious lack of royal purple). The previous owner has not been kind... Thank you all for your help. Now on to the notorious driver side trailing arm.
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