S/G Fender Tag Code?

In '67 and '68 the "AX" area of the tag can have 2 numbers, for example, 48 codes as a 3.23 with suregrip, with '4' denoting 3.23 and '8' denoting suregrip.

On the 1969 up tags, certain "axle packages" were called out on the fender tag, but usually 8-3/4 codes were on the B/S only.

On some of the '63-'66 cars, if you can find the Certicard, it also calls out a sure grip with a code "SG", if it's not a suregrip car, this same code will be "SA" for standard axle.

Mark.