Fifth Wheel Ground clearance

Does this chassis not have a cranking landing gear?

Your tires are going to be the limit of how low you can go even if the plate can drop further. 295/75R22.5 are among the shortest at 40 inches.

 

If I’m understanding your question correctly, just need to crank the landing gear a turn or two. I had this problem when I first started hauling Intermodal. I was 13.8 with the container and I had to crank a few up higher just to be able to get underneath and hookup. Also had to buy 22.5 insteady of the 24.5 I always ran. Low pro 5th wheel can help too. Can actually pick one up at a semi truck junk yard for pretty cheap.