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How to Install Curt Manufacturing Class III Trailer Hitch - Round Tube on your Sierra
Shop Parts in this Guide
INSTALLATION STEPS
1) Lower spare tire and remove existing M14 hex bolts from each frame rail.
2) Raise hitch into position and secure bumper mount with M14 hex bolts and lock washers as shown. (Leave bolts loose.)
3) Install M14 hardware in rear holes of hitch and install 1/2" carriage bolts, spacers, and flange nuts in remaining holes as shown.
4) Torque rear M14 bolt first to 126 lb-ft and all 1/2" fasteners to 110 lb.-ft.
5) Reinstall spare tire removed in step (1).
PERIODICALLY CHECK THIS RECEIVER HITCH TO ENSURE THAT ALL FASTENERS ARE TIGHT AND THAT ALL STRUCTURAL COMPONENTS ARE SOUND.
