So I was greasing my slip yoke this weekend and replacing the rear seal it has had a slow drip since I went to the steel driveline. Pulled the yoke and NO FLuid came out this is the first time I have had to work on a 4X4 so this is all new to me. After I got it all back together I have what sounds like a electric leaf blower. My fist thought was I turned the splines so I pulled D.L. again 2 time and it is good So i am thinking maybe just extremly low fluid can anyone give me a rundown of this process. Is it like changing the rear end oil?????? Thanks in Advance