https://aviation.stackexchange.com/questions/71500/why-wasnt-the-737-maxs-landing-gear-lengthened-enough-to-mount-the-engines-und https://aviation.stackexchange

https://aviation.stackexchange.com/questions/71500/why-wasnt-the-737-maxs-landing-gear-lengthened-enough-to-mount-the-engines-und https://aviation.stackexchange.com/questions/71500/why-wasnt... TL;DR that adds engineering complexity and/or would trigger redesigns of other components. The MAX 8 was supposed to be an economical refresh - a stopgap until the Y1/"New Midsize Airplane" was ready. (The sales/economic failure of the Y1 "787 Dreamliner" means the Y1 project is paused while Boeing waits for next generation technology to become available. https://en.wikipedia.org/wiki/Boeing_Yellowstone_Project https://en.wikipedia.org/wiki/Boeing_Yellowstone_Project )