I'm looking at installing a differental cooler for my 93 R. The car is used for road racing/open track only. The car has a 9 inch rear end with a Detroit Locker in it. One of the tracks I frequent is Willow Springs, where it can be above 100 degrees. The set up I'm looking at is the Nascar style. It mounts on the rear end of the car and runs off a pulley that is on the yoke. The one I'm leaning towards buying is the dual pump, that will also do cooling duties for the transmission. Anyone have any experience using this style of setup, I would appreciate any input, both pro and con about this setup...