I am using D60 rear & D44-HD from '77 F250 in my '74 sport. this is MUD & trail truck only (no rocks in ms). I can't decide on using coil springs front & rear, or leaf springs front & rear. I am hoping for 38" or larger tires w/ the least amt. of susp. lift, 3" body, & plenty of fender trimmage. I don't need a lot of flex, although some is nesesary, but I want plenty of STRENGTH & durability. I need all the advice I can get. Semi-low budget (newlywed).