If they are the same as the 67 I may have a new set in the garage. I bought new springs from ESPO a few years ago, and swapped the front bushings out for Polygraphite...

If I do, you can have them for the price of shipping...

Daily:
'19 Frontier 4WD
Belle:
'67 Belvedere Convertible, 318/727 in Go ManGo!
Other:
'64 C10, 283/3 on the tree