How can I tell if my font leaf springs are worn?

[derotoreut]

Hi all. I am new to the 4X4 forum. I just bought a '70 K10 SWB fleet side to go along with my '69 C20 LWB. I have been searching the site trying to find out if my front leafs are worn and sagging. From what I've read, it seems as though a lot of them are almost flat with little or no arch. On mine there is some negative arch to the front springs and there is only about 1-1/4" from the top of the springs to where it would hit the rubber frame bumper. Seems like maybe they have worn and there is not enough lift, but I'm not sure. Maybe this has worn and sagged over the years. Can someone shed some light here please?