I had mine made at a local truck alignment shop. Gave them the
dimensions I needed and they made them in minutes. www.mercerspringcorp.com/ They may be able to send them or know of spring shop in your area

EDIT: I see now you issue with the radius. Could you machine that radius on a thicker plate on top?

Last edited by diseasel; 11/21/2014 5:06 PM.
1950 Chevy 3800
4-53T Detroit Diesel conversion
In the Stovebolt Gallery
More pictures in Photobucket