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Thread: Cracked iX Transfer Case Mount

  1. #1
    Join Date
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    Cracked iX Transfer Case Mount

    Has this ever happened to anyone else? Must have been caused from pressing in the rubber bushing. I even froze it and coated with soap to make pressing it in easier. I assume leaving the crack alone isn't wise. Thoughts on being able to weld the crack it in place?
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    "Life is too Short to drive boring cars"


    1986 325E
    1989 325iX (Long term 5-speed/refresh project)
    1993 MB 300E
    1995 MB E320
    2000 Audi TT (Winter AWD snow beast)
    2007 Porsche Cayman S (Summer car)
    2009 VW Touareg

  2. #2
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    First, condolences,

    If you can tig it, then definitely go for it. Just make sure you read up about doing so thoroughly before attempting to do so. http://www.millerwelds.com/resources...-cast-aluminum
    If your e30 runs bad, switch to Megasquirt first. Then try new spark plugs, cap and rotor, wires, oxygen sensor, crank shaft position sensor, coolant temp sensor, air flow meter, idle control valve, throttle position sensor, digital motor electronics unit, harmonic balancer, fuel injectors, engine harness...

  3. #3
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    87 M6, 90 325iC, 89 iX
    Great article. Given that I discovered this just as I "stabbed" the 5-speed in place I am not looking forward to having to remove it again just to have this crack welded. I assume from reading the article that this is a procedure that should be done on a bench somewhere and not on-site under the car.

    I have a spare transfer case and an extra rubber bushing so I could just swap them out I guess.

    Are the 5-speed and auto iX transfer cases the same? I assume the drive shafts are a different length because of the differences in length of the 5-speed vs the auto but, other than this are they identical?
    "Life is too Short to drive boring cars"


    1986 325E
    1989 325iX (Long term 5-speed/refresh project)
    1993 MB 300E
    1995 MB E320
    2000 Audi TT (Winter AWD snow beast)
    2007 Porsche Cayman S (Summer car)
    2009 VW Touareg

  4. #4
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    325ix, 325ix, 540i
    You keep repeating this and refusing to listen to me about it. I gave up awhile ago but I will restate it again. Last time though.

    1. Both front and rear driveshafts are the same on all IXs.
    2. The transfercase is not the same between automatic and manual.
    If your e30 runs bad, switch to Megasquirt first. Then try new spark plugs, cap and rotor, wires, oxygen sensor, crank shaft position sensor, coolant temp sensor, air flow meter, idle control valve, throttle position sensor, digital motor electronics unit, harmonic balancer, fuel injectors, engine harness...

  5. #5
    Join Date
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    87 M6, 90 325iC, 89 iX
    The confusion on the transfer cases is that I "believe" the back half are interchangeable and well as some of the internals swappable. I just looked at my auto transfer case and it is different as in how it mounts to the transmission.

    This is a picture of the exact style shaft that came out of the 5-speed donor car. Unfortunately mine went to the salvage yard with the shell.

    The distance from the pinion flange to the back face of the flex disc is 38.25"

    I need to buy a drive shaft and I just want to make sure I get the correct one.
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    Last edited by 1SGDHORN; 06-19-2017 at 07:16 PM.
    "Life is too Short to drive boring cars"


    1986 325E
    1989 325iX (Long term 5-speed/refresh project)
    1993 MB 300E
    1995 MB E320
    2000 Audi TT (Winter AWD snow beast)
    2007 Porsche Cayman S (Summer car)
    2009 VW Touareg

  6. #6
    richardodn's Avatar
    richardodn is offline Old Guy BMW CCA Member
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    The front half of the transfer case is different between auto and manual to account for differences in mounting. The internals and rear half of the case are identical. The drive shafts are the same between auto and manual.
    "Howdy, Folks!"

    1986 Delphin 528e - Roof rack equipped lumber hauler.
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