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      05-28-2016, 02:41 PM   #1
fmorelli
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LSD for manual trans 3.5i

So I've been digging into the LSD. I blissfully figured $1k or so and install, and this would be a worthwhile thing to do. THen I discovered the ring gear is welded up. Anyone have a clue what it costs to get actually get an LSD in one of our cars? Any suggestions?

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      05-28-2016, 03:56 PM   #2
Zebedee305
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LSD FOR 35i

Hi, forelli,
I am having a Quaife ATB LSD fitted to my Z4 28i in June. My model 28i has a simple bolted crownwheel diff, whereas as you say your welded diff is more complicated.
Click Birds BMW Quaife London and they will give you a full discription of exactly what is envolved, and the name Worldwide says it all. They are the best. Good luck from NW Scotland, regards, Richard.
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      05-28-2016, 05:02 PM   #3
Bob20124
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I have been running an M-Factory helical LSD for over 1 year and could not be happier. I purchased a complete prebuilt pumpkin as I did not want any finger pointing if anything went wrong in the future. Best price was "Black Friday" special. Install from an indy ran $400. M- factory communications with Stephen was excellent.

Tuned and running 435WHP and 470 lb/ft at wheels.
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      05-28-2016, 06:00 PM   #4
fmorelli
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Quote:
Originally Posted by Bob20124 View Post
I purchased a complete prebuilt pumpkin as I did not want any finger pointing if anything went wrong in the future. Best price was "Black Friday" special. Install from an indy ran $400. M- factory communications with Stephen was excellent.

Tuned and running 435WHP and 470 lb/ft at wheels.
Hmmm ... I saw some complete units listed by MFactory on ***********, but that was some time ago. They don't list complete units, or the price to have them mod the welded diff, so I wrote them for specifics on what's available from them.

Thanks,

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      06-01-2016, 01:03 AM   #5
ttuner
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its 2600 shipped with the core charge. you get your 600 core charge back when you return your pumpkin. install is typically 300-400 for most reputable shops.
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