I carried two adult bikes laying in the bed in front of my hitch (with quick remove front wheels off) and sometimes a 20" kids bike behind my hitch for a number of years. Then made a pin box hitch to get them out of the bed and up and out of the way. I just made a simple straight line frame and used the pin box bolts to mount it rather than drill it my air ride pin box. The rack is not touching the top of the pin box, just very close. I could carry 3 adult bikes and the smaller bike on the rack with my long bed.
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