Does anyone know the difference between a 1977 smog pump and a 1979 pump?
Looking at the pictures it appears the casings are the same with the exception of the piece circled in red. I was wondering if a 1979 smog pump can be used in place of a 1977 without hindering or altering functionality.
Thanks!
Jeff
Looking at the pictures it appears the casings are the same with the exception of the piece circled in red. I was wondering if a 1979 smog pump can be used in place of a 1977 without hindering or altering functionality.
Thanks!
Jeff