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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > New Suspension and Quaife LSD installed - DIY



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      01-26-2012, 12:29 PM   #45
Will335i
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I am going to ask the dumb question here. When you are loosening the driftshaft nut you are turning to the passanger side correct? I have been fighting it and I want to make sure I am going the right way before I screw something up.
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      01-26-2012, 01:16 PM   #46
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I think you turn the nut clockwise to loosen it.
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      01-26-2012, 02:12 PM   #47
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Yes I know you go clockwise but that changes depending on which way you are looking at it. Anyways I figured it out. Turn towards the passanger side of the car (clockwise if you are faceing the diff with the front of the car behind you. That nut is a B!TCH!
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      01-27-2012, 11:14 AM   #48
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LOl glad it worked out
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      01-27-2012, 08:23 PM   #49
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Quote:
Originally Posted by 1fastbmw View Post
I starting working on cars at the age of ten, when my dad threw his back out and had me to help put his 600hp 440 for his 64 Plymouth Sport Fury back togther. Then I bought my 1st car at the age of 13, 1967 Cutlass with money I earned bussing tables. From then on I have been tearing everthing I own apart. I have learned Nothing is really that hard if you take your time and pay attention to how things came apart. Digital cameras now make that easy and armed with the internet you can almost find any info you need, Thanks to great websites such as this. Believe me I stopped and went back to my laptop many times during this project to double check things. I have also collected alot of tools over the years because with the money I save doing my own work, I always figured I could buy the tools I need. I'm now a Director of Engineering but this is how I like to spend my free time, it keeps me grounded. If interested in learning start off small, take your time and keep working your way up. Just remember always take the time to be safe, Do not take shortcuts, and it is always easier to do things right the 1st time. Almost everthing is that simple.
Very impressive work. What's your address? I'm going to buy the house next door so I can be that annoying neighbor always asking for help!
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      01-28-2012, 04:53 PM   #50
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Just finished my Wavetrac. I had no problems with getting the diff into the case. If something doesnt look quite right, I was working with the case upside-down... The recesses were cut so the diff fit perfectly if you did it this way. I also had both sides of the bearings and snaprings out, maybe that was your issue?


IMG_0730 by pstynoski, on Flickr

And your pic reposted for comparison


Last edited by illinipo; 01-28-2012 at 05:17 PM.
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      10-03-2012, 02:43 PM   #51
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This is an awesome thread, it really demistifies the upgrade to LSD into our cars.

I am going to jump into it and add a Wavetrack to my car. Shipping to/from Puerto Rico adds another $600 to the cost if I were to do a core swap....and I can't justify a $3k mod. Plus, I enjoy the challenge of doing things myself. I do need recommendation for selecting a bearing puller.....

The bearing puller I have won't work for this job, can someone post a pic of the puller used to remove the bearing races from the stock differential center piece? or recommend me which bearing puller to use?


thanks
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Last edited by n55PR; 10-03-2012 at 02:48 PM.
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      10-03-2012, 02:52 PM   #52
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I did the job without a bearing splitter. Careful application of some heat on the race and a cheap soft metal screwdriver (Craftsman works if you can get it there) did the trick to get enough space to use an air conditioning pulley remover.

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      10-03-2012, 03:00 PM   #53
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Hey, thanks for the answer and the pic.

What year is your car? is it Manual or A/T?
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      10-03-2012, 03:05 PM   #54
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It's a Z4 3.0SI coupe. No issues with welded ring gears on the E85/6.
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      10-03-2012, 03:43 PM   #55
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I was curious about the size of the core, the newer A/T models have a smaller differential housing.

Did you have to adjust the backslash and get different C clips or did the stock ones kept the backslash within spec.

Thanks for the quick responses.....promise no more questions!
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      10-03-2012, 03:45 PM   #56
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It was close... but everything came out in spec for me.
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      06-09-2014, 02:19 PM   #57
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I'v just bought a Quaife dif to go into my 130i (in the UK) The instructions i have said that the dif came with just 3 of the silver hex bolts installed because to fit it into the housing (on some cars) you needed to disassemble the two halves of the quaife, then re-assemble them in situ, inside the housing, then install all the hex bolts that came pre-locktited.
Perhaps that would have removed the need for the grinding.

http://www.birdsauto.com/parts/L8733000018
then click on download product information. - Birds are the UK quaife distributors for BMW cars

Having said that, my unit has come with all the bolts pre-installed. Apparently they've re-designed the quaife to make sure it fits straight in without disassembly.

I guess i'll find out in a couple of weeks when i fit it!
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      06-10-2014, 08:24 PM   #58
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rock it sir
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      11-17-2014, 09:43 PM   #59
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fantastic thread - i've referred to it many times when planning my LSD upgrade. thanks so much for taking the time to share this with us.
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