The parts manual says they will fit all 150s from 1970 to 1977.
They may even be the same part number for the 152s but I don't have a 152 parts manual to verify that.
The late model comment is incorrect but I'm unable to edit the post for some reason.

Mike L.
The guy you love to hate.
Greenwood IN.
www.facebook.com/mikelaing [facebook.com]