3.0i to get M rear suspension upgrade

jojodivo · 11-11-2009, 10:32 AM

Hey guys,

I recently purchased a rear axel (suspension and all + driveshaft) off an M coupe. I was under the impression that it was direct bolt on. Can anyone confirm or refute this?

thekurgan · 11-11-2009, 11:16 AM

I do not think this is a direct bolt on, but someone here may be more able to give the details.

jra · 11-11-2009, 11:30 AM

did you get it off ebay?

jojodivo · 11-11-2009, 11:46 AM

yeah it was the one off ebay

vachss · 11-11-2009, 12:04 PM

You at least need the rear subframe as well. I think (but can't absolutely confirm) that this plus everything out to the hubs is all you need.

Incompatible · 11-11-2009, 12:45 PM

Please take photos and notes as you go. Great info for the forum.

thanks

jojodivo · 11-11-2009, 01:39 PM

Yeah it has the subframe, it is pretty much the entire drivetrain except the transmission, front suspension and engine

BlackSapphireZ · 11-11-2009, 11:42 PM

ahh ur the one that bought it for $1500+shipping

only thing I would look into is the drive shaft(length and bolt pattern) but otherwise it should all fit

jojodivo · 11-12-2009, 06:14 AM

yeah, I prob would have passed had I not been able to talk the guy into shipping the drive shaft with the unit. I hope it all fits ok.

thekurgan · 11-12-2009, 08:42 AM

Quote:

Originally Posted by jojodivo

yeah, I prob would have passed had I not been able to talk the guy into shipping the drive shaft with the unit. I hope it all fits ok.

I know the 3.0si shares the same ZF type H transmission as the M Models, so there may need some minor modifications for it to fit in the 3.0 non si, that will be nice, really nice to have a real locking diff.

jojodivo · 11-12-2009, 01:56 PM

I have to totally agree, I have driven 3 different M Roadsters/coupes and the rear is phenomenal compared to the non-M versions due to the M variable lock differential. I think it really is that good, no stepping out what so ever due to gear changing etc.

The HACK · 11-12-2009, 03:32 PM

Direct bolt on.

jojodivo · 11-12-2009, 04:09 PM

HACK, thanks for the confo I was almost sure it was bolt on. You tha man thanks!

pbdm4k · 11-17-2009, 11:17 AM

I believe Simpson Motorsports did this mod as well to a 3.0i.

Incompatible · 11-17-2009, 11:32 AM

Quote:

Originally Posted by jojodivo

Yeah it has the subframe, it is pretty much the entire drivetrain except the transmission, front suspension and engine

If you can, would you take a picture of the M and Si rear sway bars together? Do you think the M bar would fit on the Si suspension? TIA

vachss · 11-17-2009, 12:50 PM

Quote:

Originally Posted by Incompatible

If you can, would you take a picture of the M and Si rear sway bars together? Do you think the M bar would fit on the Si suspension? TIA

It doesn't. I looked into this when I was getting bars for my SI a couple of years ago.

Twisted Six · 11-17-2009, 01:00 PM

If the factory utilized the same pick up points for both,that will be a sweet swap.
Often times OEM points are already welded in place for all options/configurations...so good luck,I hope it works for you. I have a M car I'm trying to collect thats totaled for these same reasons.LSD.

BlackSapphireZ · 11-17-2009, 11:09 PM

M rearend is TOTALLY different from non-M

Twisted Six · 11-17-2009, 11:33 PM

Quote:

Originally Posted by BlackSapphireZ

M rearend is TOTALLY different from non-M

Well, that's been covered. What he needs to know is if the pick-up points for mounting are all there whether M or non.

jojodivo · 11-18-2009, 09:24 AM

I am almost certain the contact points are the same, but will have to wait and see to find out for sure, maybe someone who knows definitively can chime in?

chickdr · 11-18-2009, 10:18 AM

Quote:

Originally Posted by jojodivo

I am almost certain the contact points are the same, but will have to wait and see to find out for sure, maybe someone who knows definitively can chime in?

Hack already said it was a direct bolt on which implies it has the same pick up points. You will only know for sure when you try it...

Twisted Six · 11-18-2009, 11:09 AM

Quote:

Originally Posted by The HACK

Direct bolt on.

Hack...are you saying that the body to subframe pick-upp points are the same....only the subframe to components are vastly different ?

If thats true...the only hurdle will be any driveshaft variances...such as length or yokes.

11-11-2009, 10:32 AM	#1
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	3.0i to get M rear suspension upgrade Hey guys, I recently purchased a rear axel (suspension and all + driveshaft) off an M coupe. I was under the impression that it was direct bolt on. Can anyone confirm or refute this?
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11-11-2009, 11:16 AM	#2
thekurgan Bad Lieutenant 232 Rep 3,517 Posts Drives: E90M3 Join Date: Aug 2007 Location: Sacramento iTrader: (0) Garage List 2008 BMW M3 [0.00]	I do not think this is a direct bolt on, but someone here may be more able to give the details. __________________ 02 E39M5 \| TiAg/Schwartz \| Tubi Rumore \| Ultimate Ti Pedals \| E60 SSK \| Jim Blanton 3.45 40/100% \| Coby Alcantara \| StrongStrut STB
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11-11-2009, 11:30 AM	#3
jra Captain 38 Rep 879 Posts Drives: 2005 z4 Join Date: Jun 2007 Location: Texas iTrader: (3)	did you get it off ebay?
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11-11-2009, 11:46 AM	#4
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	yeah it was the one off ebay
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11-11-2009, 12:04 PM	#5
vachss Captain 55 Rep 815 Posts Drives: Z4 Coupe Join Date: Jan 2008 Location: Ventura County, CA iTrader: (1)	You at least need the rear subframe as well. I think (but can't absolutely confirm) that this plus everything out to the hubs is all you need.
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11-11-2009, 12:45 PM	#6
Incompatible Major 55 Rep 1,224 Posts Drives: 07 AW Z4C 3.0Si Join Date: Aug 2007 Location: San Diego iTrader: (1)	Please take photos and notes as you go. Great info for the forum. thanks __________________ If you can't take the time to teach a kid something good, someone will take the time to teach them something bad.
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11-11-2009, 01:39 PM	#7
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	Yeah it has the subframe, it is pretty much the entire drivetrain except the transmission, front suspension and engine
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11-11-2009, 11:42 PM	#8
BlackSapphireZ Major 97 Rep 1,191 Posts Drives: 22 GLE 53 Coupe Join Date: Aug 2007 Location: Ladson, SC iTrader: (0)	ahh ur the one that bought it for $1500+shipping only thing I would look into is the drive shaft(length and bolt pattern) but otherwise it should all fit __________________ 2022 GLE 53 Coupe
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11-12-2009, 06:14 AM	#9
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	yeah, I prob would have passed had I not been able to talk the guy into shipping the drive shaft with the unit. I hope it all fits ok.
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11-12-2009, 01:56 PM	#11
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	I have to totally agree, I have driven 3 different M Roadsters/coupes and the rear is phenomenal compared to the non-M versions due to the M variable lock differential. I think it really is that good, no stepping out what so ever due to gear changing etc.
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11-12-2009, 03:32 PM	#12
The HACK Midlife Crises Racing Silent but Deadly Class 1821 Rep 5,337 Posts Drives: 2006 MZ4C, 2021 Tesla Model 3 Join Date: Oct 2007 Location: Welcome to Jamaica have a nice day iTrader: (1)	Direct bolt on.
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11-12-2009, 04:09 PM	#13
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	HACK, thanks for the confo I was almost sure it was bolt on. You tha man thanks!
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11-17-2009, 11:17 AM	#14
pbdm4k Lieutenant Colonel 74 Rep 1,689 Posts Drives: 2010 335d Join Date: May 2007 Location: North of the Border iTrader: (3)	I believe Simpson Motorsports did this mod as well to a 3.0i. __________________ 2010 BMW 335d "Ha! She wants the D." 2006 VW Jetta 2.5 Once upon a time... '03 VW GTI, '99 Audi A4 1.8TQ, '00 VW Jetta 1.85T, '09 BMW 335i xDrive, '04 BMW Z4 3.0i, '01 Audi TT 1.8T, '04 Volvo S80 2.5T
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11-17-2009, 01:00 PM	#17
Twisted Six CarbonFiber Engineer @ ZeroMassMotorsports 40 Rep 1,481 Posts Drives: Z4si-coupe Join Date: Mar 2009 Location: -Laguna Beach Ca. iTrader: (6)	If the factory utilized the same pick up points for both,that will be a sweet swap. Often times OEM points are already welded in place for all options/configurations...so good luck,I hope it works for you. I have a M car I'm trying to collect thats totaled for these same reasons.LSD.
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11-17-2009, 11:09 PM	#18
BlackSapphireZ Major 97 Rep 1,191 Posts Drives: 22 GLE 53 Coupe Join Date: Aug 2007 Location: Ladson, SC iTrader: (0)	M rearend is TOTALLY different from non-M __________________ 2022 GLE 53 Coupe
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11-18-2009, 09:24 AM	#20
jojodivo Private 3 Rep 67 Posts Drives: 2003 Z4 3.0i Join Date: Mar 2009 Location: Chapel Hill NC iTrader: (0)	I am almost certain the contact points are the same, but will have to wait and see to find out for sure, maybe someone who knows definitively can chime in?
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