64-66 GMC Headlight switch vs Chevy?

[GMCNUT]

Dumb question maybe, but does a 64-66 GMC use a different headlight switch than a Chevrolet? Not real sure mine needs to be replaced yet, but thinking it may - got wiring gremlins to figure out and the switch seems to be maybe a part of the issue - if I need a GMC specific switch for my factory wiring plug to fit, just need to know that - anyone know?

[GMC_Dude]

Not sure if is different than the Chevy version but the last time I needed one my local Napa had one that matched the one I took out. Echlin #HL6554.