Good call on getting EXACT measurements. You need to make sure you measure from TOP of bed floor rib, not in the dip between ribs.
Our Orca 140: has literally no clearance under our super duty Diamond back cross beam. So it fits, but is a total pain to move loaded. I believe Yeti is taller. And we have few complaints besides height on Orca.
YES, it does hold two rear quarters if you bone trim to fit. Meaning the Orca holds them.