Replacing the springs should improve the overall look and ride..., but nothing you do will ever make your '59 pickup ride like your modern car short of moving your truck sheet metal onto a modern chassis.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD