Re-arching Leaf Spring question

If the spring shop doesn't have an oven (furnace) to heat he springs before re-arching it won't help you. If they just use a press to re-arch (cold springs) they will start to sag again very quickly. They must be heated to a certain temperature for the spring material to reset. New springs don't cost that much more and you can get them arched to any height you desire.

Treblig