great thank you guys good info i will prob do it this weekend. i have my build sheet have to look at it. it is 4x4 4.7 tow package not sure if that means anything in the way of lsd, either way i will check the build sheet thanks again mike

 

I thought you were suppose to only fill diff to within 3/4 of an in. below fill hole??

 

i cannot find my build sheet! my wife just reorganized the file cabinet. i will have to check the glove box. it is a 4x4 1500 with 3.90's