I just looked again and that picture is for the C5 trans.
There optional trans didn't have a picture but here are the instructions that sound a lot like what you're describing Doc.
Disconnect battery ground cable(s).
Disconnect neutral start switch electrical harness from switch.
Using a suitable tool, remove neutral start switch and O-ring.
Install new switch and O-ring.
Torque switch to 7---10 ft. Lbs.
Connect neutral start switch electrical harness on to switch.
Connect battery ground cable(s) and check switch operation.
Wednesday, March 1st, 2017 AT 6:37 PM