Re: front diff.
If I am understanding you right yes it easy to diagnose but not easy to fix. It is probably the seal in the output shaft tube. Putting in a new seal is quite a task the best I remember. I thought I was going to have to put one in for someone but after I read how big a job it was we decided oil was pretty cheap.[img]/wwwthreads_images/icons/wink.gif[/img] If the leak wasnt real bad I would just keep an eye on it and check the fluid to see how much I was actually loosing. A little oil leak will look like a lot after some time leaking. If it is leaking bad enough till you think you should replace it, I would recommend you get yourself a repair manual and read to see if you want to tackle it or have it fixed. Good luck.