The previous owner removed 3 leaves on the front springs (I'm guessing because there are only 5 leaves now) and with the heavier 307 Chevy engine, the leaves are slightly arched in the wrong direction. I found some leaf springs on what's probably a 47-54 (may never know). Anyone know what, other than the distance between shackles, do I need to look for to ensure they'll fit my 37?