not reproduced, but it's been said here the heater core from a 72 Ford pinto w/ AC fits the TF dlx heater .... I'd say take the man up on the re-core, it's the best choice
"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