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Thread: The E36 Diff Thread

  1. #101
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    I have a stash of spare internals including the spacer u you posted a photo of.

    pm me your address and I will throw in envelope for you as you are local bay area! you want the diamond imprint washer that holds oil right?
    Last edited by wanganstyle; 12-16-2011 at 12:06 PM.
    Wanganstyle Powertrain
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    S54B32 E36 M3 DTA S100 Sedan Street car full swap:
    http://forums.bimmerforums.com/forum....php?t=1437471

  2. #102
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    95 M3 GTS2/ST
    Thanks Wanganstyle and Orangehatter. It is the diamond imprinted thrust washer/lug washer. I'll pm you my address and also ask for your paypal account so I can pay you for it. I put together my spare diff and put it in and ran it last weekend. So far so good. This is for the diff I took out which I am going to refresh as well and noticed that piece is kinda chewed up.

  3. #103
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    In my small amount of homework looking into re-gearing on my e28, I found the following helpful when it came down to finding discontinued parts:

    I discovered that both BMW and Porsche had ZF making their LSD carriers. As such, some of the earlier Porsche LSD carriers were similar to BMW carriers. As you can see from the link below, the Porsche internals are very similar to the BMW parts and are still available for purchase. (also note the 4 clutch setup on the Porsche).

    http://www.stuttgartclassicparts.com...0_c_11895.html
    CURRENT:
    Racecar: '81 e21 320i Group2. GT28 @ 25psi, MS2, e28 M5 suspension/brakes underneath, forged, cammed, 400bhp, 2190lbs, etc, etc...
    Daily: '95 e34 540/6. DUDMD tuned, vogtland/koni, Schnitzers, other minor touches.
    Project: '94 525iT. S50 swapped, supercharger in the works, manual swapped, Airlift supsension, Mpars, Brembo's, clean machine.
    New daily: e60 530i sport package. Stock.

  4. #104
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    how much backlash should there be and how can i adjust the backlash? I recently assembled an LSD for my e28 and it seems to be a HUGE amount of backlash. I've shimmed either direction but nothing really helps.

    here's a vid I took. thanks in advance.

    http://static.photobucket.com/player...-18-34_673.mp4

    http://static.photobucket.com/player...-18-34_673.mp4
    Last edited by dangerwillrbnsn; 12-29-2011 at 04:36 PM. Reason: Automerged Doublepost
    CURRENT:
    Racecar: '81 e21 320i Group2. GT28 @ 25psi, MS2, e28 M5 suspension/brakes underneath, forged, cammed, 400bhp, 2190lbs, etc, etc...
    Daily: '95 e34 540/6. DUDMD tuned, vogtland/koni, Schnitzers, other minor touches.
    Project: '94 525iT. S50 swapped, supercharger in the works, manual swapped, Airlift supsension, Mpars, Brembo's, clean machine.
    New daily: e60 530i sport package. Stock.

  5. #105
    RRSperry's Avatar
    RRSperry is offline Senior Moment Member BMW E36 M3 Expert
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    Visit here http://tis.spaghetticoder.org/e30/M3_(S14)_SAL/ and read the instructions for how to set up a diff.
    No matter where you go, there you are...

  6. #106
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    Quote Originally Posted by dangerwillrbnsn View Post
    how much backlash should there be and how can i adjust the backlash? I recently assembled an LSD for my e28 and it seems to be a HUGE amount of backlash. I've shimmed either direction but nothing really helps.

    here's a vid I took. thanks in advance.

    http://static.photobucket.com/player...-18-34_673.mp4

    http://static.photobucket.com/player...-18-34_673.mp4
    Acceptable backlash is 0.0024 in to 0.0055 in. You need to measure backlash from the teeth of the ring gear using a dial indicator with the base of it attached to the case of the differential. To change the backlash, you shim left or right. If you have the right preload on the carrier bearings, you have to keep the total shimming the same. Whatever you subtract from one side, you must add to the other or vice versa. As much backlash as you have there, you need to use a thinner shim on the driver's side of the differential and a thicker shim on the passenger side. Essentially what that does is moves the ring gear teeth in tighter against the pinion teeth to reduce the backlash.

    If you have any other questions, feel free to consult the link in my signature or PM me.
    Semper Fidelis

    H&R /// Koni /// Powerflex /// AKG
    My 3.46 LSD Build Thread

  7. #107
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    this diff is nice!

    bump for a good person and helpful OP!
    -Rich-


  8. #108
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    Quote Originally Posted by das borgen View Post
    this diff is nice!

    bump for a good person and helpful OP!

    Thanks!
    Semper Fidelis

    H&R /// Koni /// Powerflex /// AKG
    My 3.46 LSD Build Thread

  9. #109
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    info on the small case diffs. Dan, from diffsonline says he has them and he needs the inner and outer diameters, as there are two sizes.
    Jim Blanton says the inners are the sames size and spline count, so machining on a lathe can bring them down to size. guess i'd have to look inside.
    David Ortiz

  10. #110
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    What torque did you tighten the 8 internal hex bolts to for the carrier housing cover?

  11. #111
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    Quote Originally Posted by sirius600 View Post
    What torque did you tighten the 8 internal hex bolts to for the carrier housing cover?
    ~22 ft.lbs with blue loctite
    -Rich-


  12. #112
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    Differential has well over 15k miles now with zero issues, and also made a 2k mile run from OH to AZ.
    Semper Fidelis

    H&R /// Koni /// Powerflex /// AKG
    My 3.46 LSD Build Thread

  13. #113
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    Im going in the other direction on my gear ratio I want a 2.93 lds and thought I would just swap my ringrear onto a lsd section from a 3.15 lds turns out the ringgears or the center lds section are different. Im thinking the open diff ringgears are different from the lsd ringgear. can anyone shed some light on this. I think I need a ring and pinion from a e30 2.93 lsd. Sorry I dug up this old thread for my question it seem the best place. From what I can tell the cases are the same from open dif to lds S case. If the offset of the pinion was the difference on the cases I would be good and just swap the pinion and ringgear into the S case I have.

    Jimmie

  14. #114
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    Quote Originally Posted by das borgen View Post
    ~22 ft.lbs with blue loctite
    just FYI (oem bmw motorsports 4 clutch disc 1.5 way LSD units have those bolts glued with red locktite)



    Quote Originally Posted by JimmieG View Post
    Im going in the other direction on my gear ratio I want a 2.93 lds and thought I would just swap my ringrear onto a lsd section from a 3.15 lds turns out the ringgears or the center lds section are different. Im thinking the open diff ringgears are different from the lsd ringgear. can anyone shed some light on this. I think I need a ring and pinion from a e30 2.93 lsd. Sorry I dug up this old thread for my question it seem the best place. From what I can tell the cases are the same from open dif to lds S case. If the offset of the pinion was the difference on the cases I would be good and just swap the pinion and ringgear into the S case I have.
    sounds frustrating!

    for the 188mm e30/32/34/36 interchange diffs/gearings low numerical ratios (2.65-3.07) use one offset of LSD OR open differential capsule geometry.
    3.15-4.88+ numbers use a different geometry


    i.e. you have a e34 530i-5 with 3.07 final drive+ open differential and want to have a LSD and keep your original 3.07 gearing set.....what to do???
    -->

    install and set properly a low ratio lsd capsule from 2.79/2.93 e30 or early e36 328i 2.93 lsd. the cases, bearings, LSD capsules with matching gearing are direct interchange.

    ***e39/46 units are NOT compatible with the older gears, they are modern and more compact geometry ***

    this is the top cap of the high vs low to show the difference in bearing geometry (to match thicker or thinner ring gear).

    the 2.65, 2.79, 2.93, 3.07 ratios all use a thicker ring gear than the 3.15/3.23/3.38/3.46/3.64/3.91/4.10/4.27++
    Last edited by wanganstyle; 04-24-2012 at 12:12 AM.
    Wanganstyle Powertrain
    http://www.wanganstyle.com/

    S54B32 E36 M3 DTA S100 Sedan Street car full swap:
    http://forums.bimmerforums.com/forum....php?t=1437471

  15. #115
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    Thanks that clears it up.

    Jimmie

  16. #116
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    Bumping this up to get some info. I want to add another clutch pack to my diff to make it ~40% and that would mean I need another "dog ear" plate. Has anyone found a source for those for 188mm diffs (M3 diff, and a Z3 med case diff)?

    There was the link to the Porsche diff part source, http://www.einmaligparts.com/Differe...0_c_11895.html
    has anyone had any luck with these?

    Thank you.

    Here is an older thread that says the Porsche 944 clutches (and I suppose dog ears too) will work http://forums.bimmerforums.com/forum...d.php?t=584168 ... haven't yet confirmed it with anyone though.
    Last edited by 328 Power 04; 05-14-2012 at 12:05 PM.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  17. #117
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    Quote Originally Posted by orangehatter View Post
    Then I got these puppies from Sam at Kelly BMW:

    Did i understood correctly. These shims moves complete carrier left/right in relative to pinion ring, hence backlash could be adjusted?
    And pinion ring/bearings/collapse ring - it does not relate to above, and there is only one proper (mean with proper pretension on input side) way to install pinion part?

    So..carrier needs to be adjusted to pinion, pinion position should be fixed in acceptable pretension range and shouldn't be adjusted at all. DO i think correctly?
    Last edited by pimposh; 06-26-2012 at 06:54 PM.

  18. #118
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    1992 BMW 316i

    316i Diff

    Hi i just wanted to ask if any one can help me with my car. I just recently bought a e36 1992 bmw 316i but the engine and gears have been swapped with toyota 2jz 3000 CC. the problem which i am facing is that my cars differential is making noise and i wanted to know can i swap my cars diff with a 325 or 328's diff. your suggestions would be must appreciated

  19. #119
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    I would suspect a 316i uses a smaller case dif like the 318i here does. (pretty sure its smaller, Son has a '94 318is) If that's the case, you need to find one from another 4 cylinder Bimmer in the E36 range. Looking at the cases can tell you really quick. (and 'is's had a LSD option.) a good online resource is realoem.com google them and bring up the parts for your car, and compare to others.

    John
    '95 Hellrot M3 w/Dove
    AA Euro HFM Stage II (w/21# Injectors & Software) W/Gen III Exhaust - URI Crank Pully - FDM w/3 Row M Coupe Rad - 3.23 LSD - Vogtland Club Spec/Koni SA - UUC Red w/Enforcers - TMS Shims/Rear Camber Bars w/QA1 inners/Sways - VMC F/TMS R End Links - X-Brace - Perf Ultimate/SS Brake Lines - GC Tower Mounts/RTAB Shims - ZKW's w/5000K Hid - Fog Delete - Alpine 9847/Pioneer TS-C130R Kevlar Components/Pioneer PRS-X340/Stealth Box's/Wired Zune 120GB - OE LTW CF Sills/Glove Box Plate - Staggered Black M-Spoke II's w/235/40 (front), 255/40 (Rear) Nitto NT05's - Rolled Fenders!

    ***Got a '95 M3? (actually pretty common on all years! Even happened to Racer Seth Thomas! ) Check Your LSD! http://forums.bimmerforums.com/forum...d.php?t=390209

  20. #120
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    im in middle of doing this right now, but im having a hard time getting the current 3.91 ring off the carrier to replace it with a 3.25. already did the 5speed swap a few months ago, now i just gotta wrap up the diff and she'll be a monster

    Quote Originally Posted by nomair View Post
    Hi i just wanted to ask if any one can help me with my car. I just recently bought a e36 1992 bmw 316i but the engine and gears have been swapped with toyota 2jz 3000 CC. the problem which i am facing is that my cars differential is making noise and i wanted to know can i swap my cars diff with a 325 or 328's diff. your suggestions would be must appreciated
    lucky s.o.b. thats what im gonna end up doing to mine...2jz swap
    Last edited by naturedude32; 07-30-2012 at 03:05 PM. Reason: Automerged Doublepost

  21. #121
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    Was doing this today and would say that a good compressor and a decent impact wrench really help. My setup is just ok, and I had to wait for the compressor to refill pretty much for each bolt in order to get the maximum zip. In between waiting, I would heat each bolt with a MAPP torch to try and loosen up the existing loctite. Others I did recently have come off much more easily, so who knows.

  22. #122
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    94 E36 325, 00 E38 740iL

    Source of ring gear bolts

    orangehatter,
    I see you listed the price for 10 ring gear bolts as $24.30. However, pelicanparts has those listed at $5.50 each for p/n 33-12-1-205-561. Where did you get that good of a price?

    Also for the frictions for the LSD: pelican's got the porsche parts for $45 each, but where'd you source yours for $8 cheaper? Are the ones you used OEM BMW, or through the porsche part number? BTW, the porsche/ZF parts I've seen are 95133255100 for the frictions, and 91733255211 for the dog-ear wear plates. Will these work as replacements, or do I need the OEM BMW parts?
    If you can only use the BMW parts, what's the part number for the new frictions that you used?

    Lastly, what's the source for the shim kit aat that price?

    (Apologies if you put this somewhere and I missed it)

  23. #123
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    The OE BMW friction discs are PN 33141210626. They are around $38 at getbmwparts.com.

    The Porsche PN 95133255100 are 2.5mm friction discs, so if you just swap them in with 2.0mm dog ear plates, the LSD preload will increase. I would not just drop these in willy nilly. The Porsche 2.0mm dog ears are direct drop in replacements.

  24. #124
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    I was replacing the friction discs in a 3.73 as the diff was pretty worn. In taking them out, I measured them and they come out at 1.91mm. I am not sure if that is due to wear or if that is around what they were when fresh. They look pretty glazed, so I am guessing when new they were 2.0 mm.

    My question is, for 188 medium case diffs, are there different friction discs that are appropriate? For example, here I see them listed as a different part number: 33141203806 http://parts.bmwofsouthatlanta.com/p...141203806.html

    The discs I have are the same part number as referenced in this thread: 33141210626

    Maybe they are interchangeable?

  25. #125
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    90 535i,300sd(the tank)
    May be doing this soon, so i would like some clarification. The porche/zf parta will work but creates a higher lockup. Is there no real modification required? I would like a higher lockup, but not like a spool. I have never rebuilt one of these before so any help is appreciated.
    DarkSideOfWill said: If you can't shift as fast as the RPM drops, you should install a driver mod.

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