So last week I replaced the front leaf springs on my 56 Chevy pickup. It handles so much better than before but I recently noticed that the driver's side is about 1 1/2 inch lower than the passenger side, visible when looking at the truck head on. There were shims beneath the old leaf springs and I kept them the same way beneath the new springs. A quick look doesn't show anything obviously wrong. I'm wondering what could cause the uneven height. I will say that the shims were pretty thick, like nearly 3/8 to a half inch. They're roughly the same thickness on both sides. Any ideas on what could be happening? I understand the shims are for caster adjustment. I don't know how much they affect ride height.