Rear Differential Recommendation

Edogg218 · 05-12-2013, 06:50 AM

Hey guys,

Can anyone recommended what kind of differential whether it be manual or electronic for my n55 DCT 135i? any brands I should look at?

Thanks!

Pig Farmer · 05-12-2013, 06:59 AM

Buddy, I think your i-phone is acting up. This is the fourth time this post has come through.

Edogg218 · 05-12-2013, 07:06 AM

Quote:

Originally Posted by Pig Farmer

Buddy, I think your i-phone is acting up. This is the fourth time this post has come through.

No parody threads?

Pig Farmer · 05-12-2013, 07:40 AM

Funny.

If you're interested in a LSD, check out Wavetech. They seem to work well with our cars and are virtually maintenance-free.

Clovef · 05-12-2013, 02:22 PM

Our differentials are welded so they cost a mint. HP Autoworks sells one but I don't think Wavtrec has one for the DCT yet. Be prepaired to pay close to $4k. Sorry, maybe something will show up that is cheaper at some point but because it is welded instead of bolted like the old Step Transmission it will always be expensive with labor and something that most people could not do on their own.

ErvGotti · 05-12-2013, 02:46 PM

PM Harold at HP Autoworks, he's probably the most knowledgeable person on here when it comes to differentials.

Edogg218 · 05-12-2013, 04:56 PM

Quote:

Originally Posted by ErvGotti

PM Harold at HP Autoworks, he's probably the most knowledgeable person on here when it comes to differentials.

When I have the a spare $2,500 plus core charge, I'll hit up VAC since the shipping will be less

code911 · 05-14-2013, 10:50 AM

Quote:

Originally Posted by Clovef

Our differentials are welded so they cost a mint. HP Autoworks sells one but I don't think Wavtrec has one for the DCT yet. Be prepaired to pay close to $4k. Sorry, maybe something will show up that is cheaper at some point but because it is welded instead of bolted like the old Step Transmission it will always be expensive with labor and something that most people could not do on their own.

Looks like wavetrac might offer for dct now http://www.wavetrac.net/application_bmw335.htm

Nugget · 05-14-2013, 08:14 PM

Quote:

Originally Posted by code911

Looks like wavetrac might offer for dct now http://www.wavetrac.net/application_bmw335.htm

Awesome, thanks!

Pyrat 2 · 05-14-2013, 11:03 PM

Quaife on the dct is about $3200 installed. Had mine installed about three weeks back. All work done locally so no core was required.

Saf · 05-22-2013, 09:02 PM

Quote:

Originally Posted by Clovef

Our differentials are welded so they cost a mint. HP Autoworks sells one but I don't think Wavtrec has one for the DCT yet. Be prepaired to pay close to $4k. Sorry, maybe something will show up that is cheaper at some point but because it is welded instead of bolted like the old Step Transmission it will always be expensive with labor and something that most people could not do on their own.

2.5k for me

Nugget · 05-22-2013, 09:34 PM

Quote:

Originally Posted by code911

Looks like wavetrac might offer for dct now http://www.wavetrac.net/application_bmw335.htm

I got a quote for the parts
• 30.309.173WK BMW E87/E92 135i/335is DCT, 335d; E89 Z4 35i DCT (215K)
• 30.309.174WK INSTALL KIT: 30.309.173WK (215K)
$2,570 delivered, then need to find someone to machine and install which is proving difficult.
It's getting put in the too hard/expensive basket.

Stohlen · 05-23-2013, 07:55 AM

The BR Racing diff costs $2370 shipped and comes complete (as a pumpkin) with any gear set you want.

Stohlen · 05-23-2013, 08:27 AM

Quote:

Originally Posted by formula M

You have the BR^ ..?

Yup, haven't put it in yet though. I believe the cost is the same for their automatic version... a little higher if you want specific gears.

Nugget · 05-23-2013, 08:35 AM

Quote:

Originally Posted by Stohlen

The BR Racing diff costs $2370 shipped and comes complete (as a pumpkin) with any gear set you want.

Interesting I haven't heard of theirs, is it a Torsen or clutch type?

Stohlen · 05-23-2013, 09:40 AM

Quote:

Originally Posted by Nugget

Interesting I haven't heard of theirs, is it a Torsen or clutch type?

clutch, built to order. Offer different gear ratios based on need. I went with 3.46. Uses an OEM housing and OEM parts with a brand new gearset and their custom LSD. I'm going to make a write up on it once I get it installed.

Nugget · 05-24-2013, 12:32 AM

Quote:

Originally Posted by Stohlen

clutch, built to order. Offer different gear ratios based on need. I went with 3.46. Uses an OEM housing and OEM parts with a brand new gearset and their custom LSD. I'm going to make a write up on it once I get it installed.

Interesting, I think I'll drop them an email.

05-12-2013, 06:50 AM	#1
Edogg218 Second Lieutenant 4 Rep 211 Posts Drives: 2011 335d Join Date: Oct 2011 Location: Portsmouth, NH iTrader: (1)	Rear Differential Recommendation Hey guys, Can anyone recommended what kind of differential whether it be manual or electronic for my n55 DCT 135i? any brands I should look at? Thanks! __________________ 2009 Z4 35i 2016 Range Rover Sport
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05-12-2013, 06:59 AM	#2
Pig Farmer Major 340 Rep 1,293 Posts Drives: E92M Join Date: May 2010 Location: Florida iTrader: (0)	Buddy, I think your i-phone is acting up. This is the fourth time this post has come through.
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05-12-2013, 07:40 AM	#4
Pig Farmer Major 340 Rep 1,293 Posts Drives: E92M Join Date: May 2010 Location: Florida iTrader: (0)	Funny. If you're interested in a LSD, check out Wavetech. They seem to work well with our cars and are virtually maintenance-free.
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05-12-2013, 02:22 PM	#5
Clovef First Lieutenant 33 Rep 332 Posts Drives: 2011 135i DCT Join Date: Nov 2011 Location: Earth iTrader: (1)	Our differentials are welded so they cost a mint. HP Autoworks sells one but I don't think Wavtrec has one for the DCT yet. Be prepaired to pay close to $4k. Sorry, maybe something will show up that is cheaper at some point but because it is welded instead of bolted like the old Step Transmission it will always be expensive with labor and something that most people could not do on their own. __________________ 2011 BMW 135i DCT M Sport, black sapphire metallic,Coral red tint, black line tail lights, back grils, BMW Performance spoiler, Apex ARC8, 235/265 Dunlop ZIIs, Ohlins coilovers w/ Swift springs, M3 front bits, Whiteline rear sub frame bushings, Vorshlag camber plates, Stoptech pads, stud conversion, spacers, bms intake Last edited by Clovef; 05-12-2013 at 04:35 PM..
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05-12-2013, 02:46 PM	#6
ErvGotti Major 124 Rep 1,362 Posts Drives: 2008 135i 6MT Join Date: Jul 2010 Location: Aviano iTrader: (5) Garage List 2008 135i [6.00]	PM Harold at HP Autoworks, he's probably the most knowledgeable person on here when it comes to differentials.
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05-14-2013, 11:03 PM	#10
Pyrat 2 Colonel 1418 Rep 2,560 Posts Drives: Rapidly from A to B Join Date: Jun 2005 Location: Chicago 'burbs or TN Smokies iTrader: (3) Garage List 2022 Porsche GT4 [9.64] 2018 Porsche GT3 [9.33] 2007 Z4 M Roadster [8.33] 2020 BMW X1 [0.00]	Quaife on the dct is about $3200 installed. Had mine installed about three weeks back. All work done locally so no core was required. __________________ '07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
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05-23-2013, 07:55 AM	#13
Stohlen Major 64 Rep 1,267 Posts Drives: AW 135i Join Date: Aug 2012 Location: Waterford, Mi iTrader: (2) Garage List 2008 BMW 135i [5.66]	The BR Racing diff costs $2370 shipped and comes complete (as a pumpkin) with any gear set you want. Last edited by Stohlen; 05-23-2013 at 08:27 AM..
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