F8X M3/M4 CF Drive shaft mod

[fattycharged]

Yeah, would be awesome if someone could condense this 27 page thread into a single post with what you need, benefits, and shops that have successfully done the conversion.

Please. I still have one sitting I'd like to have altered to install. I didn't go with the fixed length version, which I thought was the better option…hoping I was correct


Sent from my iPhone using Tapatalk

[EthanolTurbo]

Which shop did he use? Manual or smg?

Manual. He used Pats Drivelines but any good driveshaft shop should be able to do this.

[bigjae46]

Yeah, would be awesome if someone could condense this 27 page thread into a single post with what you need, benefits, and shops that have successfully done the conversion.

[x Spades x]

Just wanted to give an update...Sorry for the long wait. My E46 has a blown motor so I couldn't install the driveshaft and test it...

HOWEVER... a friend of mine that I advised about this project installed it and tested on track. Works perfectly. I give this mod a thumbs up and the green light for anyone that wants to try it.

I am also putting one in my M2, but that's for a different forum.

Which shop did he use? Manual or smg?

[EthanolTurbo]

Just wanted to give an update...Sorry for the long wait. My E46 has a blown motor so I couldn't install the driveshaft and test it...

HOWEVER... a friend of mine that I advised about this project installed it and tested on track. Works perfectly. I give this mod a thumbs up and the green light for anyone that wants to try it.

I am also putting one in my M2, but that's for a different forum.

[0-60motorsports]

if you can get this figured out around the TN Nashville area I'll drive your shaft down to ATL for a tank of gas and some coffee.

Thanks brother. All we need to do is find the right shop. I'll be there next month so will try ti figure it out before then, make some calls etc.

[Cronenberged]

lol all I need is a good shop brother in the right location. Not loving the in the states doesn't help lol

if you can get this figured out around the TN Nashville area I’ll drive your shaft down to ATL for a tank of gas and some coffee.

[0-60motorsports]

Someday you'll get this figured out 🤣🤣🤣

lol all I need is a good shop brother in the right location. Not loving the in the states doesn't help lol

[bigjae46]

Thank you

Someday you’ll get this figured out 🤣🤣🤣

[EthanolTurbo]

Hey y'all. Sorry I didn't provide an update, turns out my motor has 50 psi compression in cylinder 6 so I have parked the car and am awaiting my new 67k mile screamer motor.

I definitely recommend doing the telescoping version if possible, will make install easier.

[0-60motorsports]

26107857629

It's been quoted on here a couple times, here is a link to one

https://www.ebay.com/p/16026488826

Sent from my iPhone using Tapatalk

Thank you

[fattycharged]

Can you take a pic of the part number please so we can post it up.

26107857629

It's been quoted on here a couple times, here is a link to one

https://www.ebay.com/p/16026488826

Sent from my iPhone using Tapatalk

[0-60motorsports]

I purchased a telescoping version, for the reasons you mentioned, I see no reason not to go that route.

Can you take a pic of the part number please so we can post it up.

[fattycharged]

I'm curious at the end of the day, does it matter which variant of the CF driveshaft we get? there was a telescoping version and a non telescoping version. does getting the telescoping variant make it any easier to install with out having to loosen and move the differential? that just seems like an unnecessary paint point.

if the DS has 2 measurements of CV joint compressed vs uncompressed then the driveshaft shop that cuts and welds the flanges on, would be welding the CV joint end with the CV joint in the middle of its compression range right? so that when all said and done, the CF driveshaft would have the same dimensions as the M3 2 piece DS compressed vs uncompressed right?


or is the main issue that the 2 piece DS is easier to install because of the center support bearing and you can install both ends first and then push the CSB up into its mounting location vs the single one piece DS that doesn't have the CSB to allow flexibility with installing both ends first


i saw the video of the F8x CF driveshaft video installing the CF DS with the slip yoke? i assume we dont get that luxury since we are using CV joint not the slip yoke?

I purchased a telescoping version, for the reasons you mentioned, I see no reason not to go that route.

[0-60motorsports]

Bumping this up, was anyone able to get this done in Atlanta? I'll be around the area soon so I want to get it done and ship it back to Bahrain while I am there.