So my diff is making weird noises sorta like a grinding noise at all time and i opened it up and my gear oil was all burnt and i changed it and still kept making noises and burnt up the oil again. the diff is kinda hard to turn free hand in nutuarl too any clue whats wrong.

 

Sounds like you have a bearing failing.

 

how many miles on it and does it do the one wheel peel? Could be time for an o/h.

 

pull it apart and look for a toasted bearing and or clutch pack

 

i just finished pulling it out. it has less than 10k on it. it was rebuilt with .373s both wheels still spin. how expinsive would it be if it were the clutches.

 

bad clutch's in the rear will not burn it up. if it only has 10k miles. sounds like someone had some thing to tight in the bearing preload or maybe they just got a bad bearing.