yes will take ya about an hour. Then when you do it a few times it will be down to about 10 mins.
Pull the 4 bolts on the driveshaft (yoke side)
bungie cord the driveshaft up out of the way.
Get a big breaker bar and bust the pinion nut loose and take it off.
When you pull the pinion yoke there might be shims behind it do not lose them. You must put everything back the way it came off FYI. Under all that there is the seal, pull it off with a screw driver. Then put the new one in by hand then I use a 36 mm deep socket to gently tap the seal down in place. Then put it all back together. Pinion nut should be tightened to about 165ish foot pounds.
Then your done