i just looked up ford springs and struts for the plat and ST and king ranch with 3.0
for 2023 my car they are the same part number
with police models and smaller engine ones having different part numbers
this was on ford parts website
the king ranch and plat come with 20"wheels vice the 21s we have
i am thinking the harsher ride is the 21 wheels with short sidewalls
i test drove a 23 king ranch with 3.0 and it was very different in ride