I have a couple of closer shots of the cooler but you can see it pretty well on 3015. You also see the twin Facet fuel pumps they used. They don't like pumping cold diff
oil as they are only fuel pumps so you had to warm the diff
oil up to get them to pump. The problem was they were manually switched and often forgotten in the heat of the moment racing them and they still cooked rear ends as they don't work when they're not switched on.