For more information or a written out step by step you can stop by http://www.thediyguy.net/2018/08/how-to-install-a-trailer-hitch-on-a-subaru/ . A video on how to install a trailer hitch on a Subaru. We installed this one on a 2007 Subaru Outback and we used this — https://amzn.to/2OTaTle Curt Manufacturing trailer hitch.
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Where is the pigtail?
How important is using the torque wrench? That's the only tool I do not have, and also I will only be using it for a bike rack, not towing.
He said M10x1.25
What size tap did you use to clean the threads in the frame?