apparently the 62-66 switch fits in the AD dash position better than the 55-59 ... all good, key start suits GM wiring diagrams and harnesses by default, toggle switches are for buses, and push buttons are for Fords
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics