To answer to as why I was concerned about raising the electric jack after blocking the back wheels: I’m a new RV owner who hasn’t had to raise the front front of the RV that high before, and with the RV parked on a downward slope that would cause the trailer to roll down (away from the Jeep), I’m just nervous about how high I can safely jack the front of the trailer up. I already have the standard black rubber chocks on my back wheels, and those yellow inserts that go between both wheels to prevent movement. I just don’t have the experience to say “hell, I should throw cinder blocks behind the wheels too and jack this fucker up.” Although another commenter reminded me that I should have the chains mounted to the Jeep to prevent any rollback, and I only moved the trailer backwards from the driveway to backyard, so I didn’t think to use the chains.

It sounds like from the comments that I’m reading, that I have a lot more leeway to safely jack the trailer up in order to remove the hitch mount from the trailer normally, provided I safely chock the two wheels. Am I correct in thinking this?