axle seal 2005 F150
 

Quick question:
I have an 05 F150 XL w/ 112,000 miles.
Not 4X4
Just noticed an axle seal is leaking (right side).

I checked an old Haynes manual but it covers only up through 2003 model year.
I have read old posts here, but see nothing related to '04+ body style.

Just checking, as I have not done any rear end/axle work before:
Should I expect any difference in the rear end?
Anything change with the overhaul for '04 and newer?

Is this something that is worth paying to have done? (I can have it done for about $300)

Thanks.