Help! Leaking from transfer case

This is a 97 Blazer LT with AWD 110,000miles, i replced the u-joints in rear driveshaft and then re-installed the shaft. I have a pretty severe shaking now at highway speeds. This is a new shaking. I am also leaking fluid where the shaft slides into the transfer case (a bad seal?). I messed up when i pulled the shaft and didn't mark the end at the transfer case. Only marked the end at the axle. So I may have not replaced it the same way i took it out. It is installed in the same position at the axle though. I had removed the front driveshaft months ago because of problems with u-joints and the double cardan joint. I have not been able to find the ball and socket part for the double cardan joint. Since there is no front shaft could this be damaging the t case or tranny?

do you have pictures?

I'll take some pics tomorrow. it seems to have slowed down...not dripping any more...its just wet

remember, fluid will come out when you remove the shaft.

Check your fluid levels in all transfer cases.