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B-series vs D-series VSS

Discussion in 'General Tech and Maintenance' started by stmotorsports, May 17, 2008.

  1. stmotorsports

    stmotorsports Senior Member

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    I've seen alot of discrepancies/arguing/misinfo on this subject whether the two are interchangeable or not so I figured I'd do a quick comparo since I just happen to have 1 of each semi-handy

    For reference purposes, the D-series piece shown here is from a 97 USDM Civic DX (D16Y7) trans, and the B-series is from a 2000 USDM ITR (B18C5)

    The bottom line is that the two sensors themselves ARE identical and interchangeable, BUT you have to swap the gearshafts because they are application specific. Before even attempting this BE SURE you have the correct driven gear for the drive gear on your diff, otherwise you will end up with a mismatched pair which will damage the teeth on either or both gears, the remains of which will end up floating around in your tranny ie- not good.

    Once you have the sensors out of their respective trans, swapping the gearshafts is a piece of cake. You don't even really need any tools. Well enough blah blah, here we go...

    Here are the 2 side by side, the B is on the left and the D is on the right. As you can see the sensors themselves are the same aside from the gears at the bottom. Notice the B uses a heavier-duty metal gear and the D uses a cheaper plastic gear:

    [​IMG]
    [​IMG]


    Remove the retaining pins with pliers/fingers/teeth/whatever:

    [​IMG]
    [​IMG]


    Swap the shafts, put the retaining pins back in, reinstall the sensor into trans and you're done!

    Obviously there are models not covered here, anyone plz post related info if you have any

    Feel free to nominate this to be a tech article as well ;)
     
    1 person likes this.
  2. BrutalB83

    BrutalB83 Brutal Moderator Moderator VIP

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    Good info! :thumbsup: Somebody should sticky this...
     
  3. INJEN78

    INJEN78 HS LEGEND

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    really good info..def sticky
     
  4. Justin66

    Justin66 The Hondaswap Canadian

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    Im sorry but whats a VSS? However it seems like some good info.
     
  5. K2e2vin

    K2e2vin Senior Member

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    Vehicle Speed Sensor. Hooks up to the speedometer.
     
  6. HatchSpeeD

    HatchSpeeD ...Hi...

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    DAMNIT! Are there any B-series with the plastic gear? I just bought a "B-series" VSS from someone online & the gear is plastic which leads me to believe it's D-series...UGH
    I haven't tried to install it yet
     
  7. stmotorsports

    stmotorsports Senior Member

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    afaik d's are the only plastic ones, any b's I've ever seen have been metal. Some have all plastic housings like the ones above, some are the half plastic with the metal lower half but I think all have the metal gear(?)
     
  8. HatchSpeeD

    HatchSpeeD ...Hi...

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    Yea the one I bought is half plastic I believe but has the plastic gear. I installed & it fit in fine but I haven't tried driving it yet till I have more input. Thats the last thing I need is to have the gear break off inside the tranny. I still don't know for sure if the plastic gear would work on the b-series
     
    Last edited: Mar 23, 2009
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