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How to Remove Rear Threshold to Install Trailer Wiring on a 1999 Toyota Sienna  

Updated 07/29/2014 | Published 07/27/2014

Question:

How do you remove back tailgate threshold?

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Expert Reply:

To install the Curt Wiring Harness part # C55418 you will need to remove the rear tailgate threshold. Basically you will just pull straight up on it and it will come out. To see how a very similar wiring harness would install on a very similar Sienna as your 1999 model check out the video I attached.

It shows how the threshold is removed as well as the rest of the install process.

expert reply by:
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Jameson C

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