I think this may fall under "now it is broke are you happy?"
I have a 48 3600 that i just had aligned and runs great and handles well (but not like a modern truck of coarse ),,...assuming that it just came off the assembly line and is perfect for its original design, is there any real benefit to modern shocks as compared to the original knee action shocks, and are sway bars needed at all if you are running a 6 cylinder engine with 85 to 150 hp with a 4.56 rear and radial tires at 55 mph. Just wondering how many of us are feeling the need to put these on our trucks and what if any change we should expect . thanks