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International Automotive Technicians Network
Re: What was it like to be a mechanic in the 70s amd 80s
Posted to Open Discussion Forum on 2/3/2019

I can't believe that no one mentioned that 3 numbers covered 100% of all headlamps. The large round, small round low beam and small round high beam. That number doubled to 6 numbers in 74 or 75 when the rectangular sealed beams were introduced. Login to read more.