Recommendations on where to buy new leaf springs and shocks?

[Richard]

Hate to break this news to you but the springs you are looking at will most likely not be any better than the ones on the truck now. I have owned all three brands you mentioned. If you want a good ride be prepared to pony up, $1,200-$1,500 for four springs. Go to Atlas, Alcan or Deaver in no particular order. With the right shocks the ride will be 100% better.