A recent ujoint issue seems to have destroyed the rear seal in my G56. Anybody know how hard it is to replace one. The rubber boot looks nice and tight. But its definately leaking some fluids.

Any tips or advice would be apprectiated.

 

Not sure on the G56, but on my NV4500 it was a sinch, just take a small screwdriver, work it around the lip and pop the old one out, then pop the new one in with a 2x4 to hammer it in flat(without damaging it), or use a brass hammer/rubber mallet if you have one...