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2011 Silverado transmission

Discussion in 'GM Powertrain' started by Madmantrapper, Nov 23, 2010.

  1. Madmantrapper

    Madmantrapper New Member

    I have a new silverado with a 5.3 engine and a 6 speed automatic trans. How do I know which trans this is? It has the towing package and cooling package. It is also snow plow preped.
  2. stephan

    stephan Rockstar 4 Years 5000 Posts

    Welcome to the GM truck club Madman.
    Look on the window sticker you got & see if it lists the trans as an extra charge for speciality $$$ Then try asking the dealership you bought it from, or you can try plugging your vin & rpo code in here --> http://www.compnine.com/vid.php

    The link may not be updated to your vehicle yet but it's worth a try. The site has some problems at times because it doesn't list my vin from my '88 Silverado so who knows???

  3. Madmantrapper

    Madmantrapper New Member

    Thanks for the reply. I tryed using the vin number but all it does is give the engine not the trans. The sticker showed an ungrade to the 5.3 engine and a 6 speed automatic trans. It has a manual mode for the trans. I am wondering if it is Allison trans or not. It has a 9800 pound towing capacity.
  4. mfleetwood

    mfleetwood Rockstar 4 Years ROTM Winner 5000 Posts

    Stephan -- GREAT link!! Now I don't have to keep running back and forth to my glove box everytime I need to check to see which RPO codes I have.
  5. ChevyFan

    ChevyFan November Beard Grower - Cancer Fighter Staff Member 5+ Years 5000 Posts

    Is that link still valid?


    99'HEARTBEAT Epic Member Staff Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor

    Steve.....No the Link is no longer Valid.

    Last edited: Dec 19, 2011

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