Front differential help

If you are talking about the shaft that inserts into the diff, then all you have to do is make sure the splines are lined up, and then push it back in, by grabbing the shaft and giving it a good shove. It will take alot of force to get it back in, but when it goes it you will know it. Also, you probably will want to change your diff fluid, you never know what could have gotten in there!!

This is not an uncommon problem with lifted bikes, you will need to remove the axle and replace the circle clip on the end of the axle. Most just remove the axle and bend the clip out alittle and reinstall the axle. Its a cheap part IMO I would replace it. It also wouldn't be a bad ideal to go ahead and replace the diff seal while you have it down.

Thanks for the quick help guys.

I know this is an old post but the shaft has now started coming out more often. I was just wondering do you have to totally take the shaft out to replace the circlip?

yes.