I do have a fear of being crushed by a car while I am under it working on something. In a shop, that isn’t too hard to avoid; you’re on a flat surface and you can use solid jack stand. But, out in the field? That gets a little bit more tricky.
If you’re forced to do some kind of repair out on the road that requires a wheel to be off (anything from a rock in between a brake pad and rotor to bad wheel bearings and more…), you might find yourself with only your hydraulic jack to work with. They aren’t the best option though, as they can loose height as the vehicle sits. They also have a smallish base so they’re aren’t super stable either.
You can pack a jack stand, but those are a bit heavy and take up valuable space. After reading about collapsible jack stands in SA4x4, I looked forever for some in the States and finally found some TUV Product Service stands on Amazon.
They are rated at 2000kgs (4409lbs) and stand at 10.75in at the shortest setting and 14in at the tallest. The base is a triangle that is about 7in sides (measured at the center of each leg) when unfolded and folds down to about a 5in circle. When stored they’re about 12.5in long. Two of them fit nicely in our tool drawer in the back of the 100.
I did use them when we did the brake pads. They were super stable and had more than enough height to hold up the Land Cruiser with LT285/75R16 tires (33×11.50).
These are a great thing to have and beats trying to come up with some plan to keep the truck off the ground in the field in case of an emergency. I would suggest using a shovel of course to level the ground where the stand will sit and using a board as a base plate if necessary.