ok second time this has happened... on highway, going 65-70 which is prolly more like 70-75 and fluid spits out the rear and smoke, from hitting cat and muffler. i was told to keep it at about 60-65 to keep from this happening, due to 37s runnin on that tranny. even though it has a tranny cooler. engine stays cool so its not engine and oil, oil stays normal as well. curious if anyone else has this problem or if there is a leak somewhere, and suggestions? im goin on a 2 hour trip Sat. so i figure i will bring fluid and drive about 60.