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  1. #1
    Jr. Mechanic
    Join Date
    Mar 2009
    Florida Gulf Coast

    Default How can I find out which tranny I have?

    Its a 1990 Suburban 1500 4x4 with 6.2L diesel.

    I see the codes on the glove box, but have no book on it to tell what they mean.

    How can I tell? Anything to physically look for?

    Semper Fi :fighting0037:

    1990 1500 Suburban 6.2L Diesel 4x4

  2. #2


    Look at the codes on the glove box sticker and find the ones that start with "M". You will probably find an M30 which is the 4L60E, or an MD8 which is the 700R4

    99 K 1500 Suburban
    78 Silverado Big 10 w/factory 454
    00 S-10 Blazer
    1976 Trans Am
    1980 Honda CB900 Custom

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