Need help identifying my rear axle

[funckmaster flash]

So i want to change my diff covers to something that looks a little nicer then the stock ones. I am having trouble identifying what rears I have. I know it is a dana....not sure if it is a 30...35...or 40......inam pretty sure it is not the 40. Thank you in advance......

 

[Chris]

Dana 30 front and Dana 44 rear

 

[funckmaster flash]

Thank you!!! How about diff fluid any suggestions on that??

 

[steventure]

Thank you!!! How about diff fluid any suggestions on that??

any 75W-90 GL-5 gear oil should do it