F8X M3/M4 CF Drive shaft mod

[0-60motorsports]

Shipping might be cost prohibitive but I can get a lot of these driveshafts for a good price if I had enough people that want one. I can get 10 or so currently.

Nice, Im in depending on what the price will be.

Edit: does anyone know a shop in Jacksonville FL that can do this job?

[dukeofchen]

Also in depending on price, and local-ish

[Cronenberged]

Depending on price I'm in.

[EthanolTurbo]

So are the f8x shafts going to keep going up? Thinking I should jump on one. Looking to do this on my E90, so I'm wondering if less work is going to be required as it's just one gen off. I would also buy a pre-converted one EthanolTurbo . I don't think any of the shops around here are going to like seeing a BMW as it appears most work on trucks and classics.

Shipping might be cost prohibitive but I can get a lot of these driveshafts for a good price if I had enough people that want one. I can get 10 or so currently.

[Corradoloco]

Thank you very much for the info did you use SMG driveshaft flanges from your OEM driveshaft?

There should be difference between SMG and non SMG driveshaft flanges because of actuator if am not mistaken.

I purchased a used one for the flanges but I’m not sure if it was off a smg or man, they look the same, I kept my original one intact.

[Bimmerdude]

So are the f8x shafts going to keep going up? Thinking I should jump on one. Looking to do this on my E90, so I'm wondering if less work is going to be required as it's just one gen off. I would also buy a pre-converted one EthanolTurbo . I don't think any of the shops around here are going to like seeing a BMW as it appears most work on trucks and classics.

[RazorM]

For the guys wondering if it will work with smg, it does decent amount of clearance on the giubo side. I opted for a HD giubo hopefully it’s enough to reduce flex /movement on the trans side. Diff will needs to move back 10ish mm to install the shaft. I’ll report back with a road test when the salt washes away in the spring.

Total cost around $1100 CAD so $250 usd or $150 euro🤣🤣🤣

Thank you very much for the info did you use SMG driveshaft flanges from your OEM driveshaft?

There should be difference between SMG and non SMG driveshaft flanges because of actuator if am not mistaken.

[EthanolTurbo]

Sounds like the wife is sleeping on the couch this weekend...lol..does she know how many people in this forum she's disappointed?

Her response was "if you really wanted it, you should've gone and got it!" It was my fault because I should've told her to go there first and not after appointment. 🙁

[Corradoloco]

For the guys wondering if it will work with smg, it does decent amount of clearance on the giubo side. I opted for a HD giubo hopefully it’s enough to reduce flex /movement on the trans side. Diff will needs to move back 10ish mm to install the shaft. I’ll report back with a road test when the salt washes away in the spring.

Total cost around $1100 CAD so $250 usd or $150 euro🤣🤣🤣

[bigjae46]

Not sure tbh.

As for weights, sorry guys. My wife wasn't able to pick it up on Friday when she was nearby so I won't be able to pick it up and weigh it until Monday. Will update the thread as soon as I can.

Sounds like the wife is sleeping on the couch this weekend...lol..does she know how many people in this forum she's disappointed?

[EthanolTurbo]

did you left front f8x extending, which allows easier install? i think this thing can add some weight, and config without it would be lighter.

Not sure tbh.

As for weights, sorry guys. My wife wasn't able to pick it up on Friday when she was nearby so I won't be able to pick it up and weigh it until Monday. Will update the thread as soon as I can.

[RazorM]

Also cant wait for the measured weight difference. Already ordered a shaft that i found locally for 160 could not resist

EthanolTurbo seems to have already done the job. Have you taken weight measurement already?

[discoelk]

Does anyone have converted weights yet?

[Slonik]

Update: carbon driveshaft has been successfully completed. Will be picking it up tomorrow and weighing it. I should have driving impressions in the next few days.

did you left front f8x extending, which allows easier install? i think this thing can add some weight, and config without it would be lighter.

[SliM3]

F8x driveshafts have metal end where the oe flanges are welded from the factory anyway so this is pretty straightforward procedure of cutting off oe flange and welding e46 flange back on to appropriate length then balance the driveshaft, also the f8x oe driveshaft has balance weights attached to the metal end pieces of the shaft therefore no need to mess with any part of the carbon material of the oe driveshaft.


Sent from my iPhone using Tapatalk Pro

You don't even need to hack-up your stock drive shaft. The weld-on splined stub and tri flange can be sourced separately, per Ethanols post above.

I'm going a different route than the traditional guibo/tri flange but purchased the weld-on splined stub and a weld-on 1350 yoke.


Sent from my iPhone using Tapatalk