Volvo Front Leaf Springs

[Billdozer2]

So, I'm starting to get the clunking noise when turning the wheel back and forth or making corners. Using information from this great site, I decided to have a shop check out the front shackle joints/bushings. It seems that the bushings/joints need to be replaced.

So, my truck has just over 516,000 miles on it. I run dry van (usually under 30k in the box) and back and forth across Massachusetts. Should I go ahead and replace the front leaf springs as well?

It blows my mind that the leaf spring is just two leafs and is rated for 12,500 pounds. Makes me nervous with some of the bridge joints here in MA.