This is one of the reasons 737 could not be equipped with P&W GTF engine. The base design (wing-ground clearance) is from the 60's. It worked fine for turbojets, needed squashed nacelles for larger turbofan but GTF is just step too far. You can only stretch the design so much...
Exactly, putting a lift kit on the landing gear was a band aid. The larger engines threw off the aircraft stability, so they added a software fix....forgot to tell anyone about it though.
Wonder if it the same people who added the tail flutter to the 777.