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Installation of Curt Trailer Hitch Receiver on 2020 Lexus IS 300  

Question:

Do you recommend using lock washers on the 17mm bolts when reinstalling the exhaust brackets?

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Expert Reply:

The Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C11389, will reuse hardware removed from the current exhaust hanger brackets. The installation of the hitch is shown in the attached instructions and does not include lock washers. When the bolts are torqued to the manufacturer specs you won't need to worry about bolts getting loose or lost.

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Jason S

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