Transmission Cooler & Inline Filter Plumbing Diagram - Perma-Cool Routing

This scanned schematic, labeled "C", illustrates two plumbing configurations for an automatic transmission fluid cooling system that incorporates a remote inline transmission oil filter (branded Perma-Cool). In the left layout, fluid leaves the transmission, passes through the remote spin-on oil filter, flows into the radiator's in-tank cooler, then through an auxiliary external (stacked-plate style) transmission cooler, and finally returns to the transmission. In the right layout, fluid leaves the transmission, passes through the remote filter, then through the radiator's in-tank cooler only, and returns to the transmission without an auxiliary cooler. Arrows along the hoses indicate the direction of fluid flow in both diagrams. The document contains essentially no written text beyond the filter's brand label and the panel letter "C", so it functions purely as a visual routing guide. A reader can learn where to plumb an inline transmission filter relative to the factory radiator cooler and an optional auxiliary cooler — the filter is placed on the line leaving the transmission, before the coolers. The uploader filed it with a 1990 Ford Bronco (E4OD-related documents in the same album), though the diagram itself states no vehicle applicability, year, or part numbers.