obee replied:

just put the bottle jack under the spring where it is clamped to the axle. Same for vehicle. Use a base to stop the jack from disappearing into the ground, jack on level ground, keep vehicle connected ; all the safe stuff.

Owen

disco driver replied:

Hi Freezer,
Short answer: Yes you can.

However on some older caravans (Not Campers) you may have to jack on the chassis to allow the axle to drop enough to get the wheel out.

Didn't read the post thoroughly hence my bit about caravans--totally irrelevant.

Disco

Gronk replied:

Most CT's can be jacked anywhere there is a chassis or springs etc....as long as the thing gets in the air !!!!!!!!

I find that most jacks are not suited to CT's because of the height to the axle, chassis etc, but because I take some flat bits of wood for levelling the CT , its not usually a problem !!!