ESPO XHD stock or 1" drop leaf springs

Don't know if the wheel opening for my 67 dart is the same as your 70 duster but my 50 year old stock 6 leaf springs (sagged for sure) set the ride height so that the wheel well is only a few inches above the lip of the rim. I like MrGTX's thought that the spring is too stiff so it holds the car up higher than you wanted. Cant say why it would be different before resto to after. In the old days we would sometimes remove a leaf, especially the smaller ones to lower and sag the rear abit.