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Does your E30 have a Limited Slip Differential? (LSD)

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    #16
    The list seems to indicate that manual 85 318i came with lsds, is this accurate?
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      #17
      I pulled a 3.64 small case LSD off of an 85 once. trunk said 318i

      And a 2.93 LSD out of an 87e 4 door. trunk said 325

      And a 3.73 LSD out of a 91 4 door. trunk said 325i


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

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        #18
        Originally posted by TobyB View Post
        I pulled a 3.64 small case LSD off of an 85 once. trunk said 318i

        And a 2.93 LSD out of an 87e 4 door. trunk said 325

        And a 3.73 LSD out of a 91 4 door. trunk said 325i


        all I know,
        t
        Thanks for the info, I guess I'll just have to pull it and find out.
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          #19
          Bringing this back up to ask a question -

          Our car is an '86 ES. We had the subframe off recently so I checked the tag, which checks out as a 2.93 LS. But I don't find any "S" stamp or casting on the case. Was that a painted stamp? I saw a reference to a cast-in S on the top.

          I need to refill this diff, so now I'm wondering if it's an LS or not....?

          Did I scrub it off when I degreased it?

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            #20
            It was painted. Kinda like this:

            The E stands for factory reconditioned.

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              #21
              It's unlikely it was ever off the car, and then I wire-brushed it.

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                #22
                The easiest way to check if it's an LSD is to spin the rear wheels while it's off the ground. if they spin the same direction it's an LSD. If it spins opposite it's an open.

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                  #23
                  Yep. We'll have to find a dirt road - it's an auto eta remember! (oh, OFF the ground you can check)

                  I just don't want to put the wrong oil in it.

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                    #24
                    [QUOTE=LateFan;4983714] (oh, OFF the ground you can check)

                    Yeah, just lift the rear end off the ground so that the wheels are in the air, release the ebrake and put the car in neutral, and spin one wheel manually, and look at the opposite wheel to see what it's doing.

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                      #25
                      If it's off the car, just try to spin the axles. If you can spin them opposite each other by hand, it's open. If you can't it's limited slip.

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                        #26
                        That's a casting mark. You want a stamped flat metal tag under one of the bolts.

                        Or a burnout.

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

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                          #27
                          The stamp3d tag will give you the ratio with an S indicating it's an LSD.
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                            #28
                            And the problem with spinning one side and looking to see which direction the other side turns is that, by the time you get around to the other side, it's no longer turning :)
                            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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