I have one of these HF 1.5 T jacks. The only reason I got it is that it is the only jack I could find that will go under the Willys. At that I have to get the handle lock just right to slip between the center section and the lower fender. It just makes it. I can usually get the car up high enough for most work. If not I just 2 stage it with jack stands and blocks of wood.
The little jack will not lift a wheel of the mighty Dodge diesel so it stays home. It will got up high enough for stands so I can do oil changes and minor work. Anything else requires the height and brawn of the 3 ton.
I also keep the handle in the car or truck so others at the shop don't get to abuse it.