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2G 95 and 98 transmission differences?

Posted by v8s_are_slow, Jul 7, 2018

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  1. v8s_are_slow

    v8s_are_slow Proven Member

    2,152
    48
    Joined Sep 30, 2002
    Panama City, Florida
    I have a 95 transmission in my car but have a 98 transmission sitting in my garage that a friend of mine gave me. It has double syncros, welded diff, etc. in it but I know you can't use a 98 transmission with a 95 transfer case because of the gear ratio differences. So I'm just wondering which parts are different exactly? My transmission is leaking and figured if I just took out the parts from the 98 that won't work, that'd be awesome. I also have 2 stripped bolt holes where the transfer case bolts up on my 95 so only have 3 bolts holding on the transfer case so wanting to use the 98 housing with the upgraded internals, and take my 4 spider diff out of my 95 and swap over to the 98 as well if that will work. Anyone able to help with some knowledge in this area? Thanks!
     

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  2. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    3,130
    995
    Joined Nov 14, 2013
    Independence, Kansas
    Here is some information worth reading:
     

    Attached Files:

    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
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  3. pauleyman

    pauleyman DSM Wiseman

    4,759
    813
    Joined Nov 19, 2011
    oklahoma city, Oklahoma
    If you didn't quite get that change the front diff ring and pinion. I run a 96 trans in my 97 with a 97 transfer case.
     
    My DSM:
    1997 Eagle Talon TSi AWD

    Street Build

    T25   manual
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    1990TSIAWDTALON likes this.
  4. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    3,130
    995
    Joined Nov 14, 2013
    Independence, Kansas
    Thanks Paul! I can give the info but you definately have the hands on experience to give him solid advice. I can always rely on your posts!
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
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  5. v8s_are_slow

    v8s_are_slow Proven Member

    2,152
    48
    Joined Sep 30, 2002
    Panama City, Florida
    Thanks! I'll just have to tear it apart and figure out exactly which parts those are. Lol. I've torn them apart plenty of times but it's been awhile now, thank the Lord!!!
     
    My DSM:
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  6. twicks69

    twicks69 DSM Wiseman

    3,163
    563
    Joined Mar 12, 2004
    Milwaukee, Wisconsin
    The front diff ring gear is the difference, the pinion gear is identical, that is, if no one else has swapped them earlier in its life. Either way, it is easy to identify.

    Ring gear has 58 teeth in 95-96, 57 teeth in 97-99.

    Transfer case differences is 1.090 ratio 24/22 tooth gearset for 1990-1996, and 1.074 ratio 29/27 tooth gearset in 1997-1999.
     
    My DSM:
    1999 Mitsubishi Eclipse GSX

    Drag Race Build

    9.499 @ 155.00 MPH
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    v8s_are_slow likes this.
  7. v8s_are_slow

    v8s_are_slow Proven Member

    2,152
    48
    Joined Sep 30, 2002
    Panama City, Florida
    Finally getting to this. Assuming these are the parts I need to swap out? 20180810_215418.jpg
     
    My DSM:
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  8. twicks69

    twicks69 DSM Wiseman

    3,163
    563
    Joined Mar 12, 2004
    Milwaukee, Wisconsin
    Correct. Count your ring gear teeth. The pinion should be identical in your circumstance, but check the tooth thickness and profile against the other one. You can also spin test the pinion vs. the front diff ring gear by hand and you will hear a noticeable chatter if you have the wrong profile installed.
     
    My DSM:
    1999 Mitsubishi Eclipse GSX

    Drag Race Build

    9.499 @ 155.00 MPH
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    v8s_are_slow likes this.
  9. v8s_are_slow

    v8s_are_slow Proven Member

    2,152
    48
    Joined Sep 30, 2002
    Panama City, Florida
    Thanks! Got it!
     
    My DSM:
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