Just stumbled across this thread and was intrested to read everyone’s thoughts and opinions.
This is how I jack up T5 or T6 vans to lift all four wheels, I must have done 6 or 8 by this method. I have a 3 ton Halfords advanced jack with using 3 ton SGS axel stands along with some wheel chocks.
Firstly handbrake on and place into a highgear and place the wheel chocks under the rear wheels first.
Front - I jack up from the centre of the subframe as pictured above. It’s important to keep it dead center to evenly distribute the weight between N/S and O/S bolts on the subframe. Place an axle stand on the front jacking points just behind the front wheels. If you are working on and older van it’s worth inspecting the subframe first, along with the jacking points.
Rear - I use the lower suspension arm and jack up as close to the wheel as I can get the jack. As per the video. Take your time with this as your loading the suspension which will cause the van to rock on the suspension slightly, only a few pumps at a time. Then place an axle stand under the jacking point. Then do same for the other side.
If you are not confident then i reccomand finding someone local who can lend a hand. Make sure you have the right tools for the job too.