things will be different on 55 1st series vs 55 2nd series, might specify which anything is "possible" - if you have a tape measure you might find the widths don't match well
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics