Torque Thrust lug nut issue

Looking at the pics, are those the old school wheel spacers that slide over the studs? (Like you would get at the local box retail parts store.)

If so, you may want to leave them off if you have spring clearance. The problem with the lugs loosening will probably stop. The thin cast aluminum parts stood spacers are usually poor quality and can move around.

Otherwise a set of bolt on spacers, which are usually 1 inch or thicker, can work better if a spacer is needed. A quality set can be purchased with the correct size center bore to be hub centric. A lot of the guys using Mustang wheels have to run them to "make" the offset "correct."