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Thread: 4L60E or 4L80E?

  1. #1
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    Default 4L60E or 4L80E?

    How do I know which transmission I have in my 2001 Suburban 1500 AWD?
    John

    2001 Suburban 1500 4WD LSD

  2. #2

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    Quote Originally Posted by rs6er View Post
    How do I know which transmission I have in my 2001 Suburban 1500 AWD?


    Your Suburban 1500......most likely has the 4L60e.......in your Glove Box is a white sticker with a series of Letters & Numbers.....they are RPO code's,in short what your Suburban came with from the Factory....for the 4L60e.....you will be looking for RPO Code.....M30

    And for the 4L80e.....the RPO code.....MT1
    Last edited by 99'HEARTBEAT; 10-08-2010 at 09:37 AM. Reason: Added Infor.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  3. #3
    Jr. Apprentice rutroe's Avatar
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    Default

    Quote Originally Posted by 99'HEARTBEAT View Post


    Your Suburban 1500......most likely has the 4L60e.......in your Glove Box is a white sticker with a series of Letters & Numbers.....they are RPO code's,in short what your Suburban came with from the Factory....for the 4L60e.....you will be looking for RPO Code.....M30

    And for the 4L80e.....the RPO code.....MT1
    +1...look for the RPO code. Generally, the 80s are in 3/4 and 1-ton vehicles and the 60s are in 1/2-ton vehicles.
    07 Silverado Z71, 6.0L, Turbonetics T-76 @ 10 psi, 75-shot, Comp 212/216 .560, 4L80, Yank 3000, meth injection, Magnaflow dumped, e-cutout, Nelson tuned

    Best time: 12.99@112

  4. #4
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    Default

    What else can I decipher from the RPO code. Is there a link you can point to that will help me read the code?
    Last edited by rs6er; 10-08-2010 at 10:30 AM.
    John

    2001 Suburban 1500 4WD LSD

  5. #5
    Jr. Apprentice rutroe's Avatar
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    07 Silverado Z71, 6.0L, Turbonetics T-76 @ 10 psi, 75-shot, Comp 212/216 .560, 4L80, Yank 3000, meth injection, Magnaflow dumped, e-cutout, Nelson tuned

    Best time: 12.99@112

  6. #6

    Default

    Quote Originally Posted by rs6er View Post
    What else can I decipher from the RPO code. Is there a link you can point to that will hell me read the code?
    If you go to the Below link and enter your Suburban's Vin #.....it will show you everything your Truck came with from the Factory,What Engine Trans etc....

    Link,
    http://www.compnine.com/vid.php

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  7. #7
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    Default

    Thanks. Those are great links.
    John

    2001 Suburban 1500 4WD LSD

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