ke70 has same threads as ae86 as standed lines can be swapped as im using ke70 lines on my 86.
this kit is made in usa and everything in the usa is imperial so when usa toyota build their car they use all imperial equivilant nuts and bolts
the kit is made aroung the usdm ae86 hence why they are imperial not metric!
theres a guy on hr who has had this trouble this is what he told me??? so which one is it? he ended cutting off the old flare and getting new imperial fitting then reflaring them so he definitly got imperial????????