Can't find a DIY for rear differential change

wistagehand · 06-15-2014, 06:23 PM

Don't know if I am blind or what. I can't seem to find a DIY for how to change out my rear differential. I have the Bentley Service Manual for my 2007 335i MT, however, it isn't that clear. Can anybody point me in the right direction....including any special tools that I would need or bolts / nuts that need to be replaced??? Any help is greatly appreciated. I don't want to get into the project and find out that I am without wheels for a day or two....

robc1976 · 06-15-2014, 09:39 PM

Quote:

Originally Posted by wistagehand

Don't know if I am blind or what. I can't seem to find a DIY for how to change out my rear differential. I have the Bentley Service Manual for my 2007 335i MT, however, it isn't that clear. Can anybody point me in the right direction....including any special tools that I would need or bolts / nuts that need to be replaced??? Any help is greatly appreciated. I don't want to get into the project and find out that I am without wheels for a day or two....

I have a vague DIY in my lockdown differential kit DIY.

http://www.e90post.com/forums/showthread.php?t=806041

ritjeff · 06-16-2014, 06:47 AM

DIY E90 Rear Differential Oil Change http://www.e90post.com/forums/showthread.php?t=385975

wistagehand · 06-18-2014, 10:46 AM

Thanks for the info about changing the oil in the rear differential, however, I am looking for a DIY on how to change the differential itself. Thanks!

Chefcg1 · 06-18-2014, 01:29 PM

are you talking about replacing the lsd or are you interested in removing the pumpkin?

wistagehand · 06-18-2014, 03:24 PM

I am interested in removing the entire pumpkin.

dbjb · 06-19-2014, 01:13 AM

Search for LSD install or upgrade. You'll find one that covers removing the pumpkin.

ritjeff · 07-06-2014, 09:35 AM

Quote:

Originally Posted by wistagehand

Thanks for the info about changing the oil in the rear differential, however, I am looking for a DIY on how to change the differential itself. Thanks!

Sorry, I misread the original post!

wistagehand · 07-06-2014, 07:58 PM

Thats cool. Diff will be arriving Tuesday so I can then install it. I am swapping the entire pumpkin. Still nothing totally solid as far as a DIY guide, but i've got some pics from other's that i've found online. Again, if anybody has done this before, any advise is greatly appreciated. Thanks!!!

robc1976 · 07-06-2014, 10:16 PM

Quote:

Originally Posted by wistagehand

Thats cool. Diff will be arriving Tuesday so I can then install it. I am swapping the entire pumpkin. Still nothing totally solid as far as a DIY guide, but i've got some pics from other's that i've found online. Again, if anybody has done this before, any advise is greatly appreciated. Thanks!!!

I have done around 12 or these, easy job

1. Drop exhaust (makes job easier
2. Unbolt half shafts
3. Unbolt center support bearing on drive shaft and support with wire.
4. Place Jack (preferably a transmission Jack, if not have 2 people) under pumpkin.
5. With AR wrench un-loosen the insert nut (turn clockwise to loosen).
6. After drive shaft spline is removed support with wire.
7. Un bolt the 3 nut locations on pumpkin and lower down with jack.

* If you remove quibo to remove drive shaft (some do) tighten in below order.

1. Center support bearing (make sure not upside down, See pic below)
2. Quibo
3. Insert nut

* replace all half shaft bolts and add dab of red loctite to threads.

wistagehand · 07-08-2014, 07:06 AM

Thanks much!!! I will let you all know how it goes when its done. I will also have to post pics of my ride!

wistagehand · 07-12-2014, 07:07 PM

I know I should be replacing bolts when I replace my differential. Should I be replacing all of the bolts that mount the two half shafts to the diff as well as the bolts that mount the drive shaft to the diff and the bolts that mount the diff to the frame?? I would hate to tear it all apart to find out that I can't get the hardware for a few days and not have my ride.

Thanks!

robc1976 · 07-13-2014, 03:23 AM

Quote:

Originally Posted by wistagehand

I know I should be replacing bolts when I replace my differential. Should I be replacing all of the bolts that mount the two half shafts to the diff as well as the bolts that mount the drive shaft to the diff and the bolts that mount the diff to the frame?? I would hate to tear it all apart to find out that I can't get the hardware for a few days and not have my ride.

Thanks!

replace all half-shaft bolts and all quibo bolts and nuts. Center support brace is fine.

06-15-2014, 06:23 PM	#1
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	Can't find a DIY for rear differential change Don't know if I am blind or what. I can't seem to find a DIY for how to change out my rear differential. I have the Bentley Service Manual for my 2007 335i MT, however, it isn't that clear. Can anybody point me in the right direction....including any special tools that I would need or bolts / nuts that need to be replaced??? Any help is greatly appreciated. I don't want to get into the project and find out that I am without wheels for a day or two....
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06-16-2014, 06:47 AM	#3
ritjeff Private 1 Rep 92 Posts Drives: E90 LCI 335xi Join Date: Jul 2012 Location: MD iTrader: (0)	DIY E90 Rear Differential Oil Change http://www.e90post.com/forums/showthread.php?t=385975
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06-18-2014, 10:46 AM	#4
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	Thanks for the info about changing the oil in the rear differential, however, I am looking for a DIY on how to change the differential itself. Thanks!
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06-18-2014, 01:29 PM	#5
Chefcg1 Major 69 Rep 1,137 Posts Drives: 2008 BMW 335i Join Date: Apr 2009 Location: Mount Airy, NC iTrader: (6)	are you talking about replacing the lsd or are you interested in removing the pumpkin? __________________ 2008 335i coupe AW 6AT, RB Turbos, PROcede 2.5 V5, Alpina Flash, Injen Intake, VK MW DP . Helix IC, Vishnu PnP Meth(M10 nozzel), M3 sides, OEM Aero Lip, VMR V710 Midnight Blue, LUX H8, HID Fogs, M3 front bits, D2 Coilovers, Whiteline Rear Bushing inserts, Custom M3 Steering Wheel, Cyba scoops, M2 Performance Exhaust
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06-18-2014, 03:24 PM	#6
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	I am interested in removing the entire pumpkin.
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06-19-2014, 01:13 AM	#7
dbjb I sweat pheromones 203 Rep 2,103 Posts Drives: e92 335i, retired SLK55 Join Date: Jul 2009 Location: NorCal iTrader: (25)	Search for LSD install or upgrade. You'll find one that covers removing the pumpkin.
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07-06-2014, 07:58 PM	#9
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	Thats cool. Diff will be arriving Tuesday so I can then install it. I am swapping the entire pumpkin. Still nothing totally solid as far as a DIY guide, but i've got some pics from other's that i've found online. Again, if anybody has done this before, any advise is greatly appreciated. Thanks!!!
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07-08-2014, 07:06 AM	#11
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	Thanks much!!! I will let you all know how it goes when its done. I will also have to post pics of my ride!
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07-12-2014, 07:07 PM	#12
wistagehand New Member 1 Rep 10 Posts Drives: 2007 BMW 335i 6spd turbo Join Date: Jan 2014 Location: Madison WI iTrader: (0)	I know I should be replacing bolts when I replace my differential. Should I be replacing all of the bolts that mount the two half shafts to the diff as well as the bolts that mount the drive shaft to the diff and the bolts that mount the diff to the frame?? I would hate to tear it all apart to find out that I can't get the hardware for a few days and not have my ride. Thanks!
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