I have the US Car tool kit installed in my 69 GTS. It is pre shaped/contoured (level 1 stiffening kit @$650.) and fits the floor pan 98% perfect ( New Dodge floor pan in the box purchased 10 years ago) with minor contour fitting. It took me less than two hours to weld in and is a very robust kit.
Ive spent serious Blowvid aka Covid hours watching Vizard videos. That man definitely has decades of current to this day no BS information. One of many Way ahead of his time. Not bad at all! ANY accurate information is appreciated! Always learning = moving forward.
Using a double roller/ row sealed bearing with integrated cage and race are the way to go. The bearing in the pic is an older version requiring a bearing preload onto the cup such as in the adjustable flanged type /screw type bearing flange. Ive seen and replaced many mis identified...
Block plug installation tool. Aka freeze plug tool. Mine is a 10 piece set for various sizes depending on freeze plug diameter. Some of the adapters Ive made as necessary .