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Thread: 210mm Differential Rebuilds

  1. #1
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    210mm Differential Rebuilds

    Whos the guy to go to these days for 210mm diff builds?

    I have a spare 210mm 3.15 that I want to have built with different gear sets.

    I havent had much luck with contacting Thayer Motorsports. Anyone else doing these anymore?

    I can do just about anything myself but the pinion and ring clearance gets me nervous.
    Last edited by NY98M3; 08-30-2017 at 10:44 AM.

    98 Fern Green M3/2 - Precision 6870/AR Designs Twin Scroll/RK/E85
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  2. #2
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    This is who is building my diff:

    https://www.facebook.com/globalwanganstyle/

    He's very good to discuss options with, having personal experience with pretty much every aftermarket option out there.

  3. #3
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    Quote Originally Posted by PEI330Ci View Post
    This is who is building my diff:

    https://www.facebook.com/globalwanganstyle/

    He's very good to discuss options with, having personal experience with pretty much every aftermarket option out there.
    IIRC
    He's the gent who brought ALL the diff build DIY and parts info stuff to BF.c
    in the first place

  4. #4
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    Butters?

  5. #5
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    Sourcing the gear set will be the hard part. Changing/adding clutches is easy for anyone who knows how a wrench works and any local driveline shop will be able to set the lash for you.

  6. #6
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    Quote Originally Posted by NOTORIOUS VR View Post
    Butters?
    Wanganstyle.
    '97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.

  7. #7
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    I've done a few gear changes, 2.93 recently that john is using. No time tho sorry Its wicked time consuming and I just don't have it. Try waganstyle or basically any trans shop. The issue is finding the shims, super expensive from the dealer and most shops don't like having to wait for them.

    But if you want to try it yourself, I'll lend you the tools wherever your missing. You will need a press tho.
    Last edited by Butters Stoch; 08-31-2017 at 08:10 AM.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  8. #8
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    Recently found this place up in Quebec that deal with BMW diffs: https://www.facebook.com/BavarianDiffs/

  9. #9
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    Diffsonline is reasonably local to NY98M3.

  10. #10
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    Quote Originally Posted by pbonsalb View Post
    Diffsonline is reasonably local to NY98M3.
    $2000 later.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  11. #11
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    Quote Originally Posted by Butters Stoch View Post
    $2000 later.
    That's for using box cutters to open your shipment. It goes up from there.

  12. #12
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    FYI - Thayer Motorsports is no longer assembling diffs in-house. They just carry the parts to do it.

    Received a quote from Wanganstyle - wasnt expecting it to be that high, but its a complete new rebuild. I have to weigh out my options.

    98 Fern Green M3/2 - Precision 6870/AR Designs Twin Scroll/RK/E85
    2017 Toyota Tundra Crewmaxx - Family Whip
    2011 Pierce 75' Quint - Fire Apparatus West Islip FD

  13. #13
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    Quote Originally Posted by NY98M3 View Post
    FYI - Thayer Motorsports is no longer assembling diffs in-house. They just carry the parts to do it.

    Received a quote from Wanganstyle - wasnt expecting it to be that high, but its a complete new rebuild. I have to weigh out my options.
    Do it yourself. I will help you as much as I can through text/phone. Also send you the tools that are needed to do it.

    Its not that hard, get some pattern grease, and you will see for yourself if you got it right.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  14. #14
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    I thought I was going to get a good deal today on another 210 but it was an open
    '97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.

  15. #15
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    Quote Originally Posted by Butters Stoch View Post
    Do it yourself. I will help you as much as I can through text/phone. Also send you the tools that are needed to do it.

    Its not that hard, get some pattern grease, and you will see for yourself if you got it right.
    Thanks Chris, I may give it a shot over the winter, got a quote from Waganstyle, was a bit out of my range for a spare.

    Quote Originally Posted by chikinhed View Post
    I thought I was going to get a good deal today on another 210 but it was an open
    Deals are out there, people dont know what they have.

    98 Fern Green M3/2 - Precision 6870/AR Designs Twin Scroll/RK/E85
    2017 Toyota Tundra Crewmaxx - Family Whip
    2011 Pierce 75' Quint - Fire Apparatus West Islip FD

  16. #16
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    Quote Originally Posted by NY98M3 View Post

    Thanks Chris, I may give it a shot over the winter, got a quote from Waganstyle, was a bit out of my range for a spare.

    Deals are out there, people dont know what they have.
    I also have all the bearing part #'s figured out, so you can buy timkin or skf or whatever. No need to buy dealer bearings.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  17. #17
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    Quote Originally Posted by NOTORIOUS VR View Post
    Recently found this place up in Quebec that deal with BMW diffs: https://www.facebook.com/BavarianDiffs/
    I only heard good thing about his services..
    _____________________________


  18. #18
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    Well if you guys wanna know how to properly kill a 210 (with out wheel hop), do about 50 1.4 60ft launches with a 3600lb car

    took my car for a ride today and I heard it whining.
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  19. #19
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    Was it an untouched 25 year old diff?

  20. #20
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    Quote Originally Posted by dburt86 View Post
    Well if you guys wanna know how to properly kill a 210 (with out wheel hop), do about 50 1.4 60ft launches with a 3600lb car

    took my car for a ride today and I heard it whining.
    Pics of carnage!

    Quote Originally Posted by pbonsalb View Post
    Was it an untouched 25 year old diff?
    ^^^this!

    98 Fern Green M3/2 - Precision 6870/AR Designs Twin Scroll/RK/E85
    2017 Toyota Tundra Crewmaxx - Family Whip
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  21. #21
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    Greg damaged a pinion bearing launching the car as well. Gears and all were fine.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  22. #22
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    Quote Originally Posted by Butters Stoch View Post
    Greg damaged a pinion bearing launching the car as well. Gears and all were fine.
    They use a crush sleeve don't they? How hard would it be to swap that out for a solid spacer?


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  23. #23
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    Quote Originally Posted by someguy2800 View Post
    They use a crush sleeve don't they? How hard would it be to swap that out for a solid spacer?
    Just change the 25 year old bearings and crush collar.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  24. #24
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    Im probably not going to touch it this year and keep racing it, if im being honest.

    Untouched diff and axles.
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  25. #25
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    Ya. There are some solid bearing spacer (replacement for crush sleeves) for a few brands of diffs these days. Mfactory have released a few BMW fitments. Rumor has it they will have some E36 and E46 stuff soon. It makes sense to me that the crush sleeve would "crush" some more over time with high power and hard launches leading to damage. The gear want to be pushed apart do they not with the forces and the shape of the gears?

    http://store.teammfactory.com/e8x-e9...eeve-shim-kit/

    MF-TRS-PSE92__41031.1504276586.jpg

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