ESPO XHD stock or 1" drop leaf springs

3) This source was the only one to list heights by rocker to ground, and do not give a frt./rear, they DO say these are directly from all the mfrs.
'70 Duster 6&8Cpe. / 7.58"
'71 Duster 6cyl.Cpe./ 7.25"
'71 Duster 8cyl.Cpe./ 7.40"
'72 Duster 6cyl.Cpe./ 7.33"
'72 Duster 340 Cpe./ 7.75"
'73 Duster 6&8Cpe./ 7.75"
'73 Duster 340Cpe./ 8.10"
'74 Duster 6&8Cpe./ 7.90"
'74 Duster 360Cpe./ 8.10"

Thanks. Where did you find this info? At least this is some kind of reference for me to use. I did end up ordering a new set of factory height 6 leaves from EPSO and should have them in a week or so.