I just added a couple items to my E4OD equipped ambo. No problems with it so far, but its very low mileage, so call it preventive maintenance. Added a Banks Trans Command and the Derale "cooling" pan. I bought the Derale pan for several reasons, and the "cooling" tubes were not one of them. Priced well, extra capacity, steel construction, trans temp bung, and drain plug were the factors in play.