Jeff you won't have any trouble finding ? suggestions ?
On my 38 it was suggested to buy 1/2 in x 1 3/4 in wide iron, drill 1/2 in holes about an inch apart to fit over the spring center bolt. Buy new center spring bolts to weld in the hole to make it center and fit in the perch. It will have an effect as a lowering block. In this way you could custom adjust your center line.
Just one way.