ESPO lists 57-59 shackles as separate from the 56 and show them as an OEM part. They also have the spring bushings for both the fixed end and the shackle. I've had good luck using them and maybe they can help you out.

www.espo.com


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain