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Thread: Tranny Trade!

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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    yes it will bolt to a 5.3 but don't do it. Its only truly good for a straight across 4.3L exchange. Since you're going 4.3 to 4.3 thats fine but a 5.3L tranny won't bolt to the 4.3L setup.
    Last edited by RedHeartbeat; 08-07-2007 at 11:09 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Aug 2007
    Location
    Irving TX
    Posts
    35
    so your saying that i would have to get a new tranny when i get a 5.3?
    02 chevy silverado ext. cab
    PA system; CB radio; LED underglow; LED line of fire barke light; roll-n-lock bed cover; rino spray bed liner, new center console
    SOON TO COME
    -5-7" Lift suspension/body;spin tech muffler;cai ;preformance tune;custom audio

  3. #3
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    No, you can use the 4.3 trans with the 5.3, just can't put a 5.3 300mm input transmission into a 4.3L engine setup.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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