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Which Tranny FITS???

Discussion in 'GM Powertrain' started by chevyman52, Jan 2, 2011.

  1. chevyman52

    chevyman52 New Member

    hi, Im new, I have a 1999 Silverado with a 4.8, V8. Automatic extended cab. Wondering if a tranny from a 4.3 engine will fit? What else will fit?

    thanks
    Last edited: Jan 2, 2011
  2. nos351wcm

    nos351wcm Rockstar

    Well, depending on the year of the truck with the 4.3 v6, if it is a 4L60-E, it should fit. Are both trucks 4wd? If they are then you do not have to change the tail housing of the trans However, i dont know if the wiring harness would be any different.
    Supposedly GM put some of the stronger 4L80-E transmissions behind the 4.8L in some vans, but again, dont know if the wiring harness if different. Good luck my friend
    -Dan

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