The newer differentials take a synthetic oil but I do not know which type
90 weight gear oil, I believe 2 1/2 litres
75W-90 is typically used as an "all around" gear oil for medium and heavy duty truck diffs.
The front differential uses 80w90.
most 1500 dodges have a Chrysler 9.25 differential in the rear, some had Dana setups most 1500 dodges have a Chrysler 9.25 differential in the rear, some had Dana setups
What type of rear axle fluid is used in a 2006 GMC 5500
80w90
75-140 synthetic
80W90 gear oil.
75w90 gear oil.
gear oil
90 weight gear oil