Upgraded Front Diff

TEC · 10-27-2016, 03:09 PM

I found an upgraded rear diff but what about the front diff? Are there any available or is it such a foreign piece that one of the popular units cant be substituted for it?
Thanks!

TSRxi · 10-28-2016, 11:17 AM

I am in the same boat. I have a FBO 335xi. I have not 100% confirmed it yet. but suspect my front diff is going out.

Mine may be the cv shaft. I have a great guy I use to rebuild diffs out of americans trucks.

I asked him about the 335xi.... and rebuilding it and even strengthening it up. From what I understand the bearings should be replaceable once we get it out.

It may end up not being that cost effective to do this as good used ones are $300-800... yes a big range I think due to millage and who is selling.

The Manual car units are 3.08 gear ratio.. From doing some research there is some false information based on build dates. Many of the salvage yards tell you that there is a different part for post 5-08 build cars. This is not true.. any of the e90 and most of the F60 units that are 3.08 will work.

I plan to take mine out and have him take it apart and see what he can do.

When you buy a new one from BMW they ask for a core, so they must be rebuilding them.

If my guy can do it I will let you know.

Livermore Driveline in LIvermore ca

TEC · 10-28-2016, 03:13 PM

Thats great! Please report back.
Also can you take a pic of the unit? Its just hard to believe that its such a one off unit that no one makes something that can replace it.

Shrike360 · 10-29-2016, 11:01 AM

There has been some discussion on it previously, just slow progress: http://www.e90post.com/forums/showthread.php?t=1282783

TEC · 10-29-2016, 04:14 PM

Quote:

Originally Posted by Shrike360

There has been some discussion on it previously, just slow progress: http://www.e90post.com/forums/showthread.php?t=1282783

Looks more like no progress lol

I'd be happy with even a 4 spider gear upgrade to start with

OffensiveDriver · 10-31-2016, 09:57 AM

If we get 10 people on a group buy, MFactory will build us one for aprroximately the cost of a rear helical setup

pits200 · 10-31-2016, 01:05 PM

I'm in, so 1500 for the entire pumpkin replacement?

Shrike360 · 10-31-2016, 01:41 PM

Quote:

Originally Posted by pits200

I'm in, so 1500 for the entire pumpkin replacement?

Last quote I got for the rear, it was $2300 +core.

TEC · 10-31-2016, 09:24 PM

Quote:

Originally Posted by Shrike360

Last quote I got for the rear, it was $2300 +core.

There helical lsd's are going for $999 from what I saw.

I think we should get pricing clarification before we get too excited.

Dhillon92 · 10-31-2016, 11:04 PM

Count me in

DUI Elite · 12-13-2016, 06:03 PM

More info about front LSD option from Mfactory?

Count me in if real..

OffensiveDriver · 12-13-2016, 09:28 PM

Call Mfactory and get the particulars then start a thread and get 10 people to commit.

spiritsavage · 09-14-2019, 12:00 PM

I don't want to push everyone to another website, but since the option is dead on here, is it okay for me to post a link to another forum that needs 8 more for front LSDs?

10-27-2016, 03:09 PM	#1
TEC Second Lieutenant 109 Rep 235 Posts Drives: 355 Join Date: Sep 2016 Location: East Coast iTrader: (1)	Upgraded Front Diff I found an upgraded rear diff but what about the front diff? Are there any available or is it such a foreign piece that one of the popular units cant be substituted for it? Thanks!
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10-28-2016, 11:17 AM	#2
TSRxi Enlisted Member 7 Rep 44 Posts Drives: 2008 335xi Dinan 2 Join Date: Apr 2014 Location: United States iTrader: (0)	not lot of options I am in the same boat. I have a FBO 335xi. I have not 100% confirmed it yet. but suspect my front diff is going out. Mine may be the cv shaft. I have a great guy I use to rebuild diffs out of americans trucks. I asked him about the 335xi.... and rebuilding it and even strengthening it up. From what I understand the bearings should be replaceable once we get it out. It may end up not being that cost effective to do this as good used ones are $300-800... yes a big range I think due to millage and who is selling. The Manual car units are 3.08 gear ratio.. From doing some research there is some false information based on build dates. Many of the salvage yards tell you that there is a different part for post 5-08 build cars. This is not true.. any of the e90 and most of the F60 units that are 3.08 will work. I plan to take mine out and have him take it apart and see what he can do. When you buy a new one from BMW they ask for a core, so they must be rebuilding them. If my guy can do it I will let you know. Livermore Driveline in LIvermore ca
	Appreciate 1 TEC109.00 Quote

10-28-2016, 03:13 PM	#3
TEC Second Lieutenant 109 Rep 235 Posts Drives: 355 Join Date: Sep 2016 Location: East Coast iTrader: (1)	Thats great! Please report back. Also can you take a pic of the unit? Its just hard to believe that its such a one off unit that no one makes something that can replace it.
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10-29-2016, 11:01 AM	#4
Shrike360 Lieutenant 476 Rep 482 Posts Drives: 2009 E92 M3, 2011 Porsche CTT Join Date: Mar 2015 Location: PDX, Oregon iTrader: (0)	There has been some discussion on it previously, just slow progress: http://www.e90post.com/forums/showthread.php?t=1282783
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10-31-2016, 09:57 AM	#6
OffensiveDriver Private 40 Rep 91 Posts Drives: 2008 E92 335xi 6MT Join Date: Jan 2016 Location: California iTrader: (0)	If we get 10 people on a group buy, MFactory will build us one for aprroximately the cost of a rear helical setup
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10-31-2016, 01:05 PM	#7
pits200 Colonel 547 Rep 2,590 Posts Drives: 09 335i X-Drive Black Sapphire Join Date: Mar 2010 Location: Pittsburgh iTrader: (1)	I'm in, so 1500 for the entire pumpkin replacement?
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10-31-2016, 11:04 PM	#10
Dhillon92 Captain 82 Rep 604 Posts Drives: '11 335xi Join Date: Jul 2014 Location: Toronto iTrader: (0)	Count me in
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12-13-2016, 06:03 PM	#11
DUI Elite ///M at Heart 90 Rep 1,954 Posts Drives: 06 SGM E90, 15 BSM E84 Join Date: Jan 2011 Location: Chicago, IL iTrader: (4)	More info about front LSD option from Mfactory? Count me in if real.. __________________ \| 3-IM \| AA Headers \| Eurocharged Stage-3 \| BMW PI \|
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12-13-2016, 09:28 PM	#12
OffensiveDriver Private 40 Rep 91 Posts Drives: 2008 E92 335xi 6MT Join Date: Jan 2016 Location: California iTrader: (0)	Call Mfactory and get the particulars then start a thread and get 10 people to commit.
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09-14-2019, 12:00 PM	#13
spiritsavage Enlisted Member 2 Rep 35 Posts Drives: Stock BMW 335xi Join Date: Jan 2019 Location: DFW, TX iTrader: (0)	I don't want to push everyone to another website, but since the option is dead on here, is it okay for me to post a link to another forum that needs 8 more for front LSDs?
	Appreciate 0 Quote