just a question about my 89 325i

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  • nextelbuddy
    Advanced Member
    • Mar 2010
    • 134
    #1

    just a question about my 89 325i

    i have never owned or known anything about E30s until now.

    sold my 98 e36 M3 and found a 1989 325i not running in Savannah 3 months ago. grabbed a trailer and picked it up and immediately sourced an S52 engine/transmission as well.

    i have not even got to drive the car yet at this point so last night i was swapping out the rear diff for an E28 3.25 LSD i bought locally, i went to swap diff covers and i noticed my diff read S4.10 meaning it was an LSD unit.

    i thought 4.10 LSD diffs only came on IS models? the car is an automatic transmission car originally and it has nothing sport related to it. all stock tan comfort interior yet when i check my title to the car it reads 1989 325i/325IS AUT (yes no O on the end)


    i double checked the 4.10 diff and it indeed is an LSD unit and both output flanges spin the same way together just as the 3.25 LSD i have.


    its not a huge deal to me but i was just curious as to how this happened. i ran the VIN through 2 decoders and none of them list LSD as an option (not even sure if the VIN stores that information or not)
    Tags: None
    • Kershaw
      R3V OG
      • Feb 2010
      • 11822
      #2
      someone put it on there.

      my ex-gf has a 1986 325i. 5 speed. comfort seats. it has an lsd. how? a P.O. must have installed it.
      AWD > RWD

        Comment

        • Lunner
          Wrencher
          • Feb 2010
          • 222
          #3
          Originally posted by Kershaw
          someone put it on there.

          my ex-gf has a 1986 325i. 5 speed. comfort seats. it has an lsd. how? a P.O. must have installed it.
          Don't forget winter packages.
          87 325iC 90 325iC 88 325iC 87 325i 87 325iS 87 325eS

            Comment

            • woodisgood
              E30 Enthusiast
              • May 2009
              • 1087
              #4
              My 1989 "I" car came with 4:10 lsd from the factory.

                Comment

                • txtorquemade
                  E30 Mastermind
                  • Mar 2009
                  • 1758
                  #5
                  My 90 325i came with LSD. Yep, sure did.
                  sigpic 1987 325is

                    Comment

                    • Kershaw
                      R3V OG
                      • Feb 2010
                      • 11822
                      #6
                      Originally posted by Lunner
                      Don't forget winter packages.
                      it doesnt have heated seats.

                      the P.O. installed the lsd along with an IS valence, bav-auto hot air intake, bilsteins, and h&rs.
                      AWD > RWD

                        Comment

                        • noE30
                          R3VLimited
                          • Jun 2008
                          • 2260
                          #7
                          What diff does an 89 325i auto come with originally? My car was swapped from auto to manual by the PO and I have a 4.10 lsd also.

                          Flickr

                          @michael.colby on Instagram


                          "All he needed was a wheel in his hand and four on the road"

                            Comment

                            • delatlanta1281
                              Dart Master
                              • Mar 2006
                              • 10317
                              #8
                              I thought you could get the 4.10 as an option?
                              Yours truly,
                              Rich
                              sigpic
                              Originally posted by Rigmaster
                              you kids get off my lawn.....

                                Comment

                                • Uber E30
                                  E30 Fanatic
                                  • Aug 2008
                                  • 1409
                                  #9
                                  4.10's came stock in m20b25 auto cars. LSD was an option from the dealership and not that uncommon to get.
                                  -Alex

                                    Comment

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