Nope, the exterior dimensions would be the same.
I finally found a set of monoleafs off of a '68 convertable. I was cleaning them up and I noticed some stampings in the springs. I had been under the impression that there were no markings on the springs, but now I have found very prominent stampings in the spring. On the outside of the eye where the pressed bushing goes there is a "2" stamped very clearly in both springs in the same location. On one of the springs there is a "G" stamped in the flat part of the spring near the smaller eye,the shackle end of the spring. Has anyone ever noticed these markings before, and if so what are they for, or what do they mean?