I have this 1963 C20, it has the KS10 No-Slip differential. Can this be rebuilt to a different gear ratio?

I am not sure what ratio it is, however, I may want to get something taller. And, I would like to keep it 8-lug.
Attachments
KS10 label.jpg (412.16 KB, 161 downloads)
rear end.jpg (296.86 KB, 158 downloads)
Trim label.jpg (409.49 KB, 157 downloads)


1963 C20, 292 (4.8L). 4-speed.