Hitch selection for SB

I should clarify the best I can. The frame mount is installed under the bed in only one place and hole cut in bed over that. The baseplate of hitch has u bolts that slip over a square post. To that baseplate the side plates with the saddles to support the actual hitch can be bolted to the baseplate in a neutral or 4" rearward position. The actual hitch sets on the pivots and has latch handles and safety pins to free that assembly from base assembly. To remove hitch to clear bed you have 2 separate parts and DW and I can lift them out. We could not lift the complete hitch out due to that combined weight.