I am pretty sure the one on the left is the skip shift switch (pink/green) and the VSS is on the right (purple/yellow). The reverse lockout solenoid is the one above the VSS, the round cylinder type switch. The reverse light switch is on the pass side. What is the trans out of?
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Chris
1968 Camaro SS
LS3/T56
Full of DSE and Holley parts
Yes VSS is for the speedo. Wiring info above is right.
Dakota digital should have some information on how to wire that up. I know my American Autowire update harness had wiring specifically for the VSS and for the connection to an electronic speedo.