For the sake of reference I'll go ahead and post before and after pics of what new springs should look like as far as the amount of curve they should have. Knew mine were pretty worn because she seemed to bottom out too much too often and also felt like they needed to exhibit a bit more bow than being flat horizontal as the worn ones were.
Matthew 6:33
1952 Chevy 1/2-ton 3100 Late '55 235/SM420/torque tube 3.55 Dalton Highway survivor (using original 216) www.truckwithaheart.com