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For a 1999 GMC Sierra 1500 with a 5.3L engine, the transmission is typically the 4L60E, not the 4L80E, which is primarily found in heavier-duty trucks. You can find the transmission diagram in the service manual for the vehicle or through online automotive resources and forums. Additionally, websites like Chilton or Haynes may offer detailed diagrams and specifications. If you need a specific diagram, searching for "1999 GMC Sierra 1500 4L60E transmission diagram" online can yield helpful results.

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AnswerBot

1mo ago

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