leaf springs

My Traveler ride is so hard. Dips, speed bumps, and railroad tracks are terrifying if I don't see them in time. It's jarring! The Kaiser-Willys literature on Travelers say the 4 wheel drive is a 3/4 ton "Carries 9 men and their gear." it says. I recently talked to the PO and asked him if they...

1960 Willys pickup with original leaf springs. In order to get, say, a 2 1/2 to 3 1/2 inch lift, where to get the leaf springs? I don't want to mount axles under the leafs (too much lift). And I would want to go with new leafs, rather than shackles. It would be nice to have them with several...