They are just "pressed" on. I've had success removing old ones by wrapping them with a shop towel and using pliers from the back side - don't grab the knob itself - and wiggling them off.
Dale McIntosh > Subject: Re: [Chevelle-list] '66 heater switches > > > Happy Holidays all, > > > > I am trying to repair my heater in my '66 Malibu, and > > was wondering if anyone knew if the front "knobs" on > > the levers are removable? I'm trying to switch a > > broken part in my current heater with a good one, and > > need to see if I can get the chrome knob-like pieces > > off the front of the lever. > > > > Thanks, > > > > Jim > > '66 Malibu
