I hope this isn't too dumb a question, but what shape should my leaf springs be? They're probably the original springs and I'm just wondering if they need to be replaced. On the fronts the spring (two-leaf ) rises from the shackles up to the axle. Shouldn't the axle be the low point on the spring? The rears have six leaves and they are pretty much flat, but at an angle becuase the front of the spring is mounted a little lower than the rear. Should the rears be bowed downward? Or is that only with lift springs?