Dodge Repair: 1997 dodge ram 1500 front axle shaft seals leaking.(4x4), dodge ram 1500, shaft seals

Question
what is required to do job,do i have to pull the diff out,or can the seals be replaced by just pulling (sliding the axle shafts out?)never have done work on diffs and axles before,but have replaced ball joints in it-which probably caused the seal to leak on drivers side.man its leaking pretty good too.please advise!!!are special tools needed,where do i purchase them?

Answer
AXLE SHAFT OIL SEAL
REMOVAL
Remove the axle shaft seal from the differential housing with a long drift or punch. Be careful not to damage housing.
Clean the inside perimeter of the differential housing with fine crocus cloth.
INSTALLATION
Apply a light film of oil to the inside lip of the new axle shaft seal.
Install the inner axle seal Axle Seal Installation It may be necessary to substitute Installer C-3716-A for Installer C-3972-A on 216 FBI axles.