Ok Guys, i have a bit of a dilema... replaced my pinion seal a few years ago and it never fixed the leak on the front differential. I now believe it is a bad case sealant in the 2 diff halves. Has anyone had to reseal their cases? Wondering how much trouble it will be to do. Anyone believe it would be possible to do without removing the differential entirely from the truck? What kind of time am I looking at in regards to this?