You're correct, it's more than needed but it will not have adverse affects. It's cooling and lubricating your final drive.Ironman said:*I purchased the wrong weight oil and was just wondering if this wouod do any harm?*
I hope not, cause I put SuperTech synthetic 75-140 in mine 1600 miles ago. So far, so good. The 75-140 is suppose to be for drag racing applications where the differential gets very hot. I think it's probably just more than needed, but not more than I can use The price was right too.