As long as you're into it that far, I would replace pins and bushings too. I replaced my front springs on my 47 3600, and all the pins and bushings too. Like yours my front springs were not right, too many leaves and not the correct springs in the stack. My truck rides very nice, I wonder why people change the front end to independent suspension when my old truck rides better than my 2000 F250 and my convertible summer fun time car. I may add a sway bar this winter to keep the body roll to a minimum. Other than that, I want it to be an old truck, not a modern vehicle.