I know you have figured out how to fix your problem. However, I'll throw this out for anyone who is still wondering how to do the same thing.
I replaced the power tongue jack on my new 2017 Jayco 23RB, with a Barker 3500 jack. I was also couldn't put my tailgate down when the truck was hitched to the trailer.
I loosened the tongue jack head and turn it sideways. Now I can lower the tailgate all the way down while truck and trailer are hitched. I turned the head per factory instructions.
PDX1953 wrote:
I recently picked up a small Dunesport toy hauler & towed it home to OR from Mesa with my (now sold) Ford Flex. The hatch wouldn't open because it hit the electric tongue jack.
I bought a F-150 and ordered a custom contractor-style aluminum cap without side windows and barn doors on the back. It's on order & will be painted to match my pickup but I realized the barn doors will also hit the jack. I had a 1000# capacity Cargo Glide installed & will mount my 3100W Champion Genset & the propane bottle on one side near the back. I'll also be mounting an electric wheelchair lift so I can load my Segway based chair. I don't use it all of the time so sometimes it'll be loaded via the trailer ramp & other times via the "crane" in the pickup.
Is anyone aware of a compact (short) electric tongue jack? I'm using an Anderson WD hitch so the ball sits about 6" from the bumper but I'll have clearance issues. If I can't find a small enough jack my plan is to have the rear doors split & turned into bi-folds but that'll be expensive.
Even if I had a conventional cap the tailgate would also hit the jack. I'm open to all ideas.