I used to do a lot of at home automotive work, and in the early days relied on jack stands since it's what was sold for the purpose and being a kid I didn't know better yet.
But after several years and a few close calls with cars unexpectedly shifting on the stands while applying work forces from below, I started using ramps and/or cribbing made of plain stacked dimensional lumber like 2x8s, and just scrap blocks of wood in general I'd taken from heavy duty pallets.
Jack stands just plain suck, it doesn't matter who made them. They're rigid at the vehicle interface (usually cast steel/iron) and generally only make very little points of contact over their cast in, small area profile - not even considering the tipping hazard when extended.
Solid chunks of wood piled up like cribbing is far more safe, and in my experience, free. And as an added bonus now you have chunks of greasy wood on hand for whacking things on/with less-destructively...
But after several years and a few close calls with cars unexpectedly shifting on the stands while applying work forces from below, I started using ramps and/or cribbing made of plain stacked dimensional lumber like 2x8s, and just scrap blocks of wood in general I'd taken from heavy duty pallets.
Jack stands just plain suck, it doesn't matter who made them. They're rigid at the vehicle interface (usually cast steel/iron) and generally only make very little points of contact over their cast in, small area profile - not even considering the tipping hazard when extended.
Solid chunks of wood piled up like cribbing is far more safe, and in my experience, free. And as an added bonus now you have chunks of greasy wood on hand for whacking things on/with less-destructively...