How to lift cab? Can you use seat belt and bench screw holes?

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Hello, I was searching different ways to lift a cab off of a 1970 chevy c10 a couple weeks ago and came across a person's comment in a thread on here (and a picture) of how they lifted their cab off by using an engine hoist. They had chains screwed into the holes of the seat belts and the front bench seat on the cab floor (I have tried to find the post but can't seem to find it).

If anyone has or knows how to do this (or could link that person's post if anyone else has seen it lately) I would like to know what size and thread bolts are used in the seat belt holes and front bench seat bolt holes (mostly looking for what thread size, i can figure out what length I need). Also, as for removing the cab, does anyone know what size nuts are the cab mounts under the frame?

I plan on lifting the cab with just the front and rear windows left in (doors and seat removed).

Thanks for any info!