Turn signal switch help

[XtechX]

It seems that my blinker switch is in need of some repair.
1965 c10, 3 on the tree all original.
Where the blinker lever screws to the inner turn signal cam is cracked right down the middle where the screw goes in and needs replaced. Can the cam itself be taken apart from the rest of the plastic assembly inside or does everything in there need replaced? It just seems that it should come apart at the pivot point.
Any input on my problem would be greatly appreciated
Thanks, Roy