KJ Dragon-
If I remember correctly, Johnnyx has a hidden hitch and had no problems fitting in a 31" tire underneath.
When this first started I looked for current pics of his Rear Bumper. I looked in the "custom lisence" thread, but it only showed the front. He went and bought a swing away from a TJ I believe. It doesn't truly mount to the hatch though, it IS a swing-away.
After having on MY swing away carrier bumper for a while, and constantly opening and closing for my dog to git up or out,I can say you'd definitely want that to swing down (as opposed to removing the hitch/tire manually each time.)If you went that way at all.
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I'm still sayin' the actuators (2 ea.), pushing up the reinforced door and a true hatch mount will rock. Seemingly simple for the mechanization, I'm just not sure what strucural change is needed to the hatch interior. An 2" angle iron X with a plate for the bolts to the carrier? That extra 100# will cause a lot of vibration and stress on just the door.
But think of the departures/dropoffs you can do ^\
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-- Yeah.