ive got oil comin out of my drivers side front axle. would this be the inner seal or outter? and how hard is it to replace? im not macanic but i norm work on my own truck and have 95% of the tools....

is this a one man job, and if so how many hours?

 

I believe that would probably be the inner seal leaking, and it is a job to replace. Do you have access to a shop manual for your truck? Read up on the amount of work, and then decide if you want to do it yourself, or have a shop do it.
That would be a good time to take a look at your bearings, ball joints, and u-joints, since you will have most of the front end apart.

 

You decide how hard it is> http://dieselpowerman.tripod.com/Fro...xle%20Tech.htm

The seal job used to be about the best deal going at the dealer, $125 per side. Might want to get an estimate first.

 

Being curious about your problem, I checked the url suggested by infidel. It did not work for me. Seems you can get there though by using http://dieselpowerman.tripod.com/ and clicking on AxleTech on the left. I'd say it will take you more than a couple hours to get this seal replaced. Good luck.