gear set swap on e34 to e30 diff

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  • whterice
    Wrencher
    • Jan 2009
    • 258

    #1

    gear set swap on e34 to e30 diff

    Trying to find out before tearing two perfectly good diffs apart and finding out that its not gonna work.

    little back story. I have a sr20det swapped e30 and I would like the gearing to be as close as possible to a stock silvia/240sx. Gearing on my e30 currently is an open 3.73. Stock gearing on a silvia is a 4.11.

    I have a 3.25 lsd from a e28 that was pulled from another e30 so I know it fits in the car. I just picked up a med case e34 open 4.27.

    I would like to take the lsd from the 3.25 and swap the gear set from the 4.27 into the 3.25 housing. Is this possible? I could just sell everything and buy a 4.10 lsd but I would still be tearing it apart and throwing new gaskets into it and making sure everything is ok.
  • prjct_318i
    Noobie
    • Dec 2010
    • 24

    #2
    I'd like to know this too...

    I would like to swap 4.33 gears into my 3.73LSD.

    EDIT: You can. Found the swap info and clutch rebuild here:


    Last edited by prjct_318i; 06-09-2012, 06:54 AM. Reason: UPdated

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