What's the dodge Ram 1500 front differential fluid type?

The Dodge Ram 1500 front differential fluid type iS75W-140 gear oil. The front differential is the last place that the power goes when Your vehicle is in four wheel drive so it is important to keep the gears in there protected. A differential uses much thicker oil than You would normally use in an engine. This is because the area of the differential is very small and gets hot with the gears rotating in it. A thinner oil would likely break down and not help protect the gears in the same way as the thicker oil. If You notice any leaks from Your front differential I recommend fixing them to prevent costly damage to the gears.