Thanks all for the great information and the help. If you have a picture of the 70 vs. 71 caliper, that would be great.
Is that what your after from the beginning?
I have a pair of 70, early 71, single piston calipers, that i rebuilt, that i never put up for sale, so i have pictures in my computers files.
I took pictures of the 70, early 71, with the "wide mouth" compared to what was used after that.
You looking for a pair?
e mail me.
Won't be cheap though, i know what i have.