F8X M3/M4 CF Drive shaft mod

[CrisSilberGrau]

Any more updates from the ones that have installed this mod? I have my 7629 being shipped soon. Need to see what is the best way to go about installing it.

[bigjae46]

Jae, know of any shops in Houston who could take on the most recently posted configuration by spool1?


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I wouldn't trust anyone in Houston. I think Driveshaft Specialists are in San Antonio, don't see why they couldn't handle it. Not sure if they can dynamically balance the shaft which is the reason why the shop that EthanolTurbo used which is apparently a spinoff of Powertrain Industries would be the best option.

[fattycharged]

I think so.

Jae, know of any shops in Houston who could take on the most recently posted configuration by spool1?


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[Altaran]

Yes that's correct, no heat shield.

I am running the heat shield. I had to bend it at certain sections to prevent contact, but it's easy to do when underneath and the car is out of gear. Just turn the wheels and listen if there is a grinding noise from heat shield contact.


Btw, I tracked my car on Monday, no issues with the CF shaft.

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[1spool]

No rubbing, if you remove the heat shield.
Or you revisited your initial install and are now running the heat shield?


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Yes that’s correct, no heat shield.

[fattycharged]

No rubbing.

No rubbing, if you remove the heat shield.
Or you revisited your initial install and are now running the heat shield?


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[1spool]

So this DS will rub on something or it won't?

No rubbing.

[1spool]

Did your revised, shortened driveshaft allow you to install without loosening the diff?

Yes.

[1spool]

Thanks for coming back nd posting your feedback. Do you have an SMG or 6MT?

6MT

[EthanolTurbo]

Did your revised, shortened driveshaft allow you to install without loosening the diff?

Haven't reinstalled it, car has been in the garage for months. I'm guessing the diff still has to be loosened.

[Cronenberged]

So this DS will rub on something or it won't?

[sdwz_m3]

Altaran's worked fine, I got mine re-shortened to the proper length, just haven't reinstalled it yet. I haven't driven my E46 in 3 months so once I get it back on the road I'll resume testing.

Did your revised, shortened driveshaft allow you to install without loosening the diff?

[0-60motorsports]

Installation went well, it really was a breeze. Could not be happier with my decision to opt for the telescoping slip-on joint flange, it was so easy to get the driveshaft into place. Everything else was very straight forward, typical driveshaft job. Only thing that's different is I decided to leave the heat shield off-- a quick fitment check revealed that it's going to be a choice between constant rubbing on the driveshaft being that it's got a larger diameter than stock or an occassional rattle against the exhaust and I wanted to deal with neither of those.

As far as driving impressions go, I can't pretend the car feels night-and-day different, it really doesn't 😂 but I am happy to have rid myself of and never have to worry about the center support bearing ever again. Was a fun project, I recommend to anyone who is looking for something to do to their E46, especially if their CSB is giving issues.

Thanks for coming back nd posting your feedback. Do you have an SMG or 6MT?

[fattycharged]

You can't tell any difference in engagement?


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[1spool]

Installation went well, it really was a breeze. Could not be happier with my decision to opt for the telescoping slip-on joint flange, it was so easy to get the driveshaft into place. Everything else was very straight forward, typical driveshaft job. Only thing that's different is I decided to leave the heat shield off-- a quick fitment check revealed that it's going to be a choice between constant rubbing on the driveshaft being that it's got a larger diameter than stock or an occassional rattle against the exhaust and I wanted to deal with neither of those.

As far as driving impressions go, I can't pretend the car feels night-and-day different, it really doesn't 😂 but I am happy to have rid myself of and never have to worry about the center support bearing ever again. Was a fun project, I recommend to anyone who is looking for something to do to their E46, especially if their CSB is giving issues.