Duster leaf springs stock height measurement?

replaced mine on my 1970 duster i am also stock v-8 tires.i used laura at espo and highly recommend new u bolts and shackles.i chose to do a 1 inch lift which espo can do.It took a little more finesse to match shocks and sits slightly raised on spring settling.I don't think they recommend extra leaves but it is up to you.By the way ask for rubber or upgraded bushings as they are not included.I was well pleased with prices from Laura at ESPO all they do are springs and related.Joe