well, all I know is the parts book shows 55-56 the same, and I've parted out 3 complete 56's that all had the button Classic says is 54-55, never seen the oddball type - last 56 wheel I had with the button here

I do notice on the accessories list that 56 was the first year for the 'high note horn', maybe that option included a special horn button? ohwell

Bill

Moved over to the Passing Lane

"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