Jacking to change a tire or service brakes or bearings?

Cummins12V98 wrote:
I don't get why more people don't use the TrailerAid as there is no need to get under the RV and make sure the jack is on stable ground. Also the bottle jack has to fit under a deflated tires axle. Conditions are not always perfect along side the road.

My only issue is that it is another gizmo to have to haul around, on the extremely unlikely chance that I might have a flat. And I have other things that will do the job and serve other purposes. Nothing against the device itself.