ahh, the shop isn't saying they can repair yours .... unless you find a replacement core
no, the cores for the different style heaters are different, and the car and truck heaters were different 55-59, you might need to investigate the Ford core
"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