I have a 04.5 2500 with limited slip diff. How much fluid to refill after r&r the diff cover ? Thanks , Phil

 

less than 4 quarts

 

For the 11 1/2" gear, the rear end takes 3.62 pints of 75W-90 full synthetic gear oil. This will be about 1/4" below the fill plug (you can stick your pinky in to guesstimate the level).

 

Did mine 2day. 3.73 rear took little less than 3 1/2 qts. don't know size of gear.

You can also bend a bread sack tie at a 90, hook'er in & measure that way.
Tried a paperclip 1st; couldn't see oil on it as good as a breadsack tie.