1974 Ford Bronco Heater & Blower Assembly Under-Dash Installation Diagram

This document is a line-art illustration (apparently from a Ford factory shop manual or parts catalog) showing the heater assembly installed beneath the dash of an early Ford Bronco. The exploded-style drawing depicts the heater plenum/case mounted under the instrument panel, with three flexible ducts/hoses rising from the heater box to outlets in the dash area, mounting screws shown exploded above the dash panel, the blower motor housing, and a large cylindrical blower/heater core assembly at the right side near the cowl. Dashed lines indicate the routing of cables or hoses and hidden panel outlines. The only text visible in the scan is the notation "Copyright FoMoCo" at the bottom center; there are no callout numbers, part numbers, legends, or captions visible. The drawing would help an owner understand how the under-dash heater components, defroster ducts, and blower assembly fit together and mount to the firewall and dash of the vehicle, but it provides no written specifications, torque values, or part identification on its own. It was uploaded as part of a set of 1974 Ford Bronco reference scans (filename heater2.jpg) alongside a companion image heater.jpg.