Holy 10 year old thread Batman!
If I had to guess 4 1/2" front 6"-7" rear drop.
My 69 short step has 17x8 with 235 55 17 front and 17x9 with 275 55 17 rear. Leaf spring flip for 7 1/4" drop over the factory HD leafs. Front is ECE disc conversion drop spindles and 2" springs for 4 1/2" drop.