After I noticed a comment on the WHP site about their 70-72 front bumper brackets about needing to heavily modify them to fit a 73 (https://whiteheadperformance.com/product/new-datsun-240z-260z-280z-stainless-steel-euro-bumpers/), I did a bunch of searches of this and other sites and haven’t been able to confirm that this is or isn’t true. I did find someone on ZCar.com saying that you have to do a bunch of work to make them fit, but in that same thread someone mentioned that the original 70-72