[wingnut60]

I would think there are a lot of people with all types of trailers (like me) who are going to suffer failed frames, blown tires and maybe acne, from raising one tire by placing a bottle/floor jack under one spring pad and lifting the subject tire off the ground.

I agree you should never place a jack directly onto an axle tube, but to say you will ruin something by using the spring pad just has not been shown to cause problems--that I have heard of on any of the forums.

If you are going to use a frame mount to raise one tire off the ground, I would think it might possibly cause some frame stress by the time you get it high enough to remove the tire.

I imagine (can't prove anything, tho) that more stress is placed daily on the tires/wheels/axles by road conditions than would ever be caused by jacking on the spring pad. Some of the potholes that we can't miss surely are causing more impact force than just jacking on the spring pad. Will test this theory next summer on my Alaska trip...

My story, and I'm sticking to it.

Joe