D35 axle seals

My rear axle is leaking oil and I need to change the seals. Should I still do both the inner, outer and replace the bearing while in there, or would I be okay just replacing the inner seals. Also, does anyone know of where there is a write up on the net? Thanks

What year is your XJ? Is the axle a c-clip or non-c-clip Dana 35?

Sorry, its an 88 non-c-clip

BTT--Anyone?