I was speaking for the advance design trucks ('47.2-'55.1). Look at my post again 1 ton through 2 ton front springs will interchange. 1/2 ton and 3/4 ton front springs will interchange. 3/4 ton through 2 ton rear springs will interchange (3/4 and 1 ton use a spacer to make up the 1/2" space in the spring mounts and shackles)


Liquidated my projects
Now looking for a decent '47-'55.1 3100, 3600, or 3800