[birdistheword]

Those 6 bolt round pattern NP205s are pretty pricey if you can find one. If you still want a smoother ride I would look into Alcan or Deaver spring companies. They make custom leaf springs for your specific application. You could also go through Offroad Design as well. I did a 52"/56" spring swap on my 69 K20. I used the stock rear 52" spring up front and swapped the thick overload for a short add-a-leaf. In back I moved the rear spring hanger towards the rear to use a custom set of springs from Offroad Design. It came out to about a 5-6" lift and rides way better than stock. I used Bilstein shocks and did a cross over steering conversion as well.