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new 325is transmssion question

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    new 325is transmssion question

    hey guys, i ended up buying a 89 325is automatic from some guy on craigslist. the car itself isn't in the best of shape,in fact its actually a pos cosmetically. well iv decided to save the dam car, and will use an 1986 325 es production date 9/86 with a 5 speed in it as the donor car.

    iv read a few things about transmission being compatible with the 89is but could i use my complete drivetrain? from rear subframe, differential, driveshaft, center bearing and transmission. iv replaced many of these parts and would like to keep them. will this be a straight forward swap or do i have to mix and match the parts in order for it to work.

    #2
    Yes, most all the parts should fit. The flywheel for the I is different then the E motor though. The I is much lighter.
    sigpic
    Steve Corbett
    1983 528E Scrapped
    1983 528E Sold
    1984 745I
    1984 325E - Sold
    1989 325I Bronzit-Sold
    1989 325I Zinno
    1988 635CSI

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      #3
      You will need to use the drive shaft from the manual trans
      Deck Lid and soft top Shocks on hand

      Seat shocks on hand for immediate shipment
      https://www.r3vlimited.com/board/sho...86#post4944786
      Alice the Time Capsule
      http://www.r3vlimited.com/board/showthread.php?t=360504
      87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

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        #4
        awesome thanks for the replys guys. yeah i figured i would just pull the complete subframe from the e car and through it in my IS since all the bushings are new. ill keep the differential and driveshaft from the e car as well. i should start this project in the next few weeks so ill let you know how it goes. thanks.

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          #5
          Stick with the i diff.
          Deck Lid and soft top Shocks on hand

          Seat shocks on hand for immediate shipment
          https://www.r3vlimited.com/board/sho...86#post4944786
          Alice the Time Capsule
          http://www.r3vlimited.com/board/showthread.php?t=360504
          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

          Comment


            #6
            You will need to use a late style csb no matter which driveshaft you use.
            It will fit either ds.

            t
            now, sometimes I just mess with people. It's more entertaining that way. george graves

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              #7
              ok i ordered the csb today and a few other things im going to need to get this going.
              i was also thinking about keeping the i differential but its a 4.10 lsd. the lsd in my es is a 2.93 lsd and would be better for fuel and street driving since i rarely commute long distance.

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                #8
                still havent order the clutch. any recommendations of which one to get?

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