Installing a Prinsu roof rack install on my 5th gen 4Runner - what went right, and what went wrong.

As plans develop for longer trips = more stuff = where to put it, the next logical step was a roof rack. I had a factory roof rack, but a low profile one with a mounting system is much more versatile, and just looks cooler.
Of course before I started, I watched LOADS of other people's video about the install. There are so many great ones out there, but I still had questions -- and occasionally went astray.

This is the seam sealer that so many people recommend:
https://amzn.to/4e2F4Sn

I got the butyl tape at Home Depot, but if you want it in black, they sell it on Amazon: https://amzn.to/3X4xPm4

Some folks on the 4Runner forum recommended stainless steel neoprene bonded sealing washers. You can find them at McMaster-Carr, or on Amazon: https://amzn.to/478sfE3

The neoprene washers are from Ace Hardware.
My upgraded body pry tools are from Harbor Freight.