1. Jan 20, 2006 #1
   

   alknopf New Member

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   I was wondering if anyone knows what has to be done to use a th350 trans with a 1999 5.3L? Also... does anyone know if the engine wiring harness from a 5.3L controls the 4L60E transmission or does it have a seperate control module?

    
2. Jan 21, 2006 #2
   

   ZS10 Moderator Staff Member Lifetime Gold Member

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   Ttt...

    
3. Jan 21, 2006 #3
   

   jakeshoe Veteran Member Lifetime Gold Member

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   To use a Th350 trans you need a flexplate, adapter, and bolts used to put the 4L80E behind a 6.0L.
   
   I don't have the PNs handy or I would post.
   
   The PCM electronics control the trans. Same controller for the motor, they are not seperate.

    
4. Jan 21, 2006 #4
   

   alknopf New Member

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   thanks

    

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