Spent all afternoon in the blistering heat changing out the seeping pinion seal on my '04 tj. Was much more a PITA than I was led to believe. The damn nut was really on there. Tried breaker bar, no dice. My impact gun, not a chance, buddy's newer impact, the nut just laughed at me, had to phone a friend who works on big rigs and used his monster torque impact...three hours into the project, nut finally broke free. Got down to business and used gear puller to remove yoke and then the seal, cleaned everything up wiped it dry, installed brand new seal. LOOKS GOOD!!! Fill er up with new gear oil. Reattach Drive shaft. and drive it around a few miles. Look at the seal after its parked...nice n dry.
Go to work next day and outta curiosity, take a look at the seal...****ing oil leaking out of it!!!!! This sucks!!!