popeyemth wrote:
Rethink the blocks for extra lift situation
That camper is heavy and deadly .
No, just pay attention to all four jacks when lifting and lowering and make sure none are "coming up" or flexing. I regularly lift my 5000+ pound Lance to heights approaching nearby radio towers on blocks totaling 16"-20". If they are solidly built and on solid ground there is no more risk in putting it on blocks, rather, there is LESS RISK than extending the jacks all the way out to their full extent which is where they are by far the weakest and wobbliest and maximize any differences in the jacks from perfectly vertical. An extra 16" of tube within tube makes them stronger.
The OP admitted as such (good man/woman!)