1964 LeMans front coil springs
 

Do the the front coils have spring isolators? Upper, lower, both? Thanks

All the info I've found shows that the front springs don't use them, however they use a
spacer/ insulator inserted on the bottom of the spring to raise the ride height.

When I rebuilt my front end, it had 1/2" spacers on the springs. Had trouble getting them to set in place, so I left them out. It did lower the front end some.

Don't know how much, never measured the difference.

Nothing is used no isolator no pads no nothing .

Agreed. Nothing is used, including no spacers.