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2G 2g 97+ AWD Trans Identification

Posted by SpankyStokes, Jul 7, 2020

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  1. SpankyStokes

    SpankyStokes Proven Member

    62
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    San Antonio, Texas
    I pieced the car up from a straight shell.

    Bought the trans and transfer case together and was told it was a 97+ combo.
    I hadn't really driven the car much until I completed the rebuild a while back. I've driven the car at least 80 miles trying to do the break in process.
    The car drives fine with no issues but along 5th gear above 3k rpms the car vibrates violently, while the rear tires intermediately lock up until I come to a full stop which I then can begin to drive again with no issues.

    Is there a way to check my transmission gear ratio with the transmission installed ?
    I've verified the transfer case to be 97+ but not the transmission.
    Is this a transfer case issue? I figured the car would be binding and chirping immediately if the combo was incorrect.

    I've drained the transfer case with metal material found.
    Hoping its a transfer case issue and not the wrong transmission.

    TRANSMISSION CODE
    W5M332 UMGL
     
    Last edited: Jul 7, 2020

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  2. DSMPT

    DSMPT Proven Member

    897
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    Joined Jun 12, 2014
    Japan / Mexico, Arizona
    That transmission came with a RVR Hyper Sport Gear R.
    The gear ratios are below and you need to match this trans with a 14 turn t-case like 2gb DSM or EVO 3 t-case, unless the front diff ring gear/pinion have been swapped for a 12 turn t-case.

    And yes, you can check the trans side, too.
    Check the post #8 in the link below. @twicks69 Tim explained it.
    https://www.dsmtuners.com/threads/are-all-2g-transfer-cases-interchangeable.514723/

    Anyways you definitely should open the t-case and inspect all gears and bearings inside. It's really dangerous if the t-case gets locked up while driving.

    W5M33-2-UMGL
    1st : 2.750
    2nd : 1.684
    3rd : 1.160
    4th : 0.862
    5the : 0.666
    Final : 5.358
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  3. SpankyStokes

    SpankyStokes Proven Member

    62
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    Joined Oct 15, 2019
    San Antonio, Texas
    My transfer case lines up after 14 rotations.
    I tried doing the transmission but I get different results.
    I believe I’m going to have to disconnect the cv axles while in 5th gear and rotate the engine?


    I will open up the transfer case though. It spins too easy. Should there be resistance ?
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  4. DSMPT

    DSMPT Proven Member

    897
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    Joined Jun 12, 2014
    Japan / Mexico, Arizona
    How many turns did it take to line up? This trans should have a 63T ring gear and a 15T pinion, the same as EVO 3, so it should line up at 5 turns at the front diff (Axel) or 21 turns at the output shaft. If not, you may have something different that is not matched with a 14 turn t-case.
    As for the t-case. If you don't have fluid in the t-case, you would feel less resistance, you should still feel some resistance though. If the t-case still has fluid, you would feel it more.
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  5. SpankyStokes

    SpankyStokes Proven Member

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    Joined Oct 15, 2019
    San Antonio, Texas
    Update
    I opened up the transfer case and the gears looked very good so I sealed it back up.

    Also for future reference you will need to pull your axles to get an accurate rotation reading. I tried for an aggravating hour yesterday with zero lines matching up.

    I pulled both axles including the half shaft and got my results first try with results of 5.

    Thankfully both my transmission and transfer case were a matching pair but am now left stumped. I will inspect the rear differential tomorrow. Thank you for those who have applied any input.

    If any other suggestions come to mind please share. Thank you members.
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  6. DSMPT

    DSMPT Proven Member

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    Japan / Mexico, Arizona
    Glad to know that you figured it out. But did you also check all bearings? As you said you found some metal material in the t-case fluid, did you find where it came from?
    It's a good idea to inspect the rear diff. and if I were you, I would check the carrier bearings and the trans/engine mounts, and rim/tire balance, too.
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  7. SpankyStokes

    SpankyStokes Proven Member

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    Joined Oct 15, 2019
    San Antonio, Texas
    I have the fluid stored and will reopen the transfer case for pics. I know one of the rollers on the bearing was slightly scuffed but it rotates smoothly although the material found does match the color of the gears which is a dark metallic gray.

    Mentioning engine mounts I am missing the the front roll stopper that goes on the crossmember.
    Would it cause a large balance issue with the drive shaft?
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  8. DSMPT

    DSMPT Proven Member

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    You definitely need to have the front mount first. Yes, it would possibly be a cause of vibration through the driveshaft especially if you don't have solid mounts. The shaft angle would change.
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  9. SpankyStokes

    SpankyStokes Proven Member

    62
    26
    Joined Oct 15, 2019
    San Antonio, Texas
    FA5EE01B-FC46-45D1-8E7C-4E39B60616CA.jpeg 95772708-5E19-47C7-9AC4-7A54DF95B86B.jpeg F0B203D5-CF61-43A8-B2DB-5502EF466B27.jpeg

    Update on what is found inside the T Case.
    The small bearing for the input shaft has tons of play and damage on the rollers . Both bearing race look in good condition although I couldn’t snap a picture of the inner one.
    Improper backlash adjustment?
    Please view videos for input. Thank you guys.


     
    Last edited: Jul 9, 2020

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  10. SpankyStokes

    SpankyStokes Proven Member

    62
    26
    Joined Oct 15, 2019
    San Antonio, Texas
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
    Loading...
  11. pauleyman

    pauleyman DSM Wiseman

    5,750
    1,246
    Joined Nov 19, 2011
    oklahoma city, Oklahoma
    2 sec inspection shows you those bearings are gone. The rollers alone, wow.
     

    Street Build 3K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  12. SpankyStokes

    SpankyStokes Proven Member

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    Joined Oct 15, 2019
    San Antonio, Texas
    The gears look to be in reusable condition correct? To me they look good but i'm no expert and would like input for peace of mind.
    Thank you for posting.
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  13. DSMPT

    DSMPT Proven Member

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    Japan / Mexico, Arizona
    You almost missed that OMG
    You are lucky that you could find it out before going back to the road. That could possibly cause all wheels locked while you are driving and you would loose control and spin.
    Can't be 100% sure but the gear still looks ok in the pic. If the budget allows you, the best way would be you send it to some transmission shop and inspect and rebuild properly.
     
    Last edited: Jul 9, 2020

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  14. SpankyStokes

    SpankyStokes Proven Member

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    San Antonio, Texas
    Hey, if you weren't interrogating me like a seasoned detective i would have haha.
    All input is greatly appreciated and lots of respect sent DSMPTs way for being an outstanding member.
     

    Street Build 296  1

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  15. DSMPT

    DSMPT Proven Member

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    Japan / Mexico, Arizona
    It's because actually I have an experience that I spun on the road caused by a piece of broken bearing in t-case :ohdamn:
    In this forum there are many experienced people and they would help you. And I am sure one day you would help someone. So we can keep this platform live longer :thumb:
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

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    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  16. twicks69

    twicks69 Supporting Vendor

    3,684
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    Joined Mar 12, 2004
    Milwaukee, Wisconsin
    Bearings look like junk, you have damage to the front housing input side with a missing input seal, and you have a 97-99 1.074 tcase gear set.
     

    Drag Race Build 8K  12  76

    1999 Mitsubishi Eclipse GSX
    9.499 @ 155.00 · 2G DSM
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  17. DSMPT

    DSMPT Proven Member

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    Japan / Mexico, Arizona
    I have been meaning to ask you if you have already checked what rear end you have. And I forgot to verify how many turn did the output shaft have when you checked the 5 turn?
    Like I mentioned above that this trans originally has a 63T front diff ring gear, so if the previous owner hasn't swapped it with 2gb's, it was 21 turn at the output shaft and 5 turn at the front diff gear. In this case you need the 3.909 rear end.
    If the previous owner said 97+ combo was true, it is supposed to be 19 turn at the output shaft and 5 turn at diff gear, and it works with the 3.545 rear. If you had a mismatched rear end, that may have been the cause of the t-case damage and locking up.
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

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    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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