Best way to raise my Duster

So if I got these springs, would it just be a matter of swapping them out? Or would I have to get new shocks too?
New shocks would be needed. Riding on worn out old shocks would be a bad idea, shocks are cheap, BUT! You will need longer shocks. You may also need new shackle bushings and they may be B/E body knew that are larger. MAY...
1) lower the front some..
2) put stock shakles back on it
3) buy new springs.. i'd go espo V8 6 leaf at whatever height ya want.. all depends how high ya want it.. stock, +1" or +2".
My ‘74 with ESPO springs @ 1 inch higher ride height.
C5278E54-81B8-4278-A81A-82746087BDA5.jpeg