Re: Is it a good idea ...?
* redesigning a taller undercarriage to accommodate the new, bigger engines in their proper place would be awfully expensive as well as adding weight, which reduces payload capacity.
And then some, as the needed landing gear geometry is pretty much defined by the air frame. The wheels themselves form a part of the lower aerodynamic surface, being sealed into cutouts in the bottom of the fuselage (only the struts are covered by doors). The MAX 10 has a mechanism to allow the gear to extend about another 10 inches, to prevent the poor thing from bumping its butt on rotation, if it ever gets to fly at all.