Author: A. Henderson
The correct overdrive switch for the early MGB is a simple Lucas toggle switch, identical to the ones used for the heater fan. Cars to # 61016 used this switch. At that point a change was made to a crooked handle switch.
The early overdrive switch bezel is chrome, with stamped in markings of “normal” drive in blue, and “overdrive” in red. The same bezel was used on big Healeys. A later similar brushed alloy bezel with silk screened markings was supplied at some point after 1965. The later silk screened version is available as a reproduction. The early bezel is not.