Trans case output shaft/drive shaft???

[jsfordboy02]

I have a '96 Explorer sport, auto. When I come to a stop or start or even sometimes going over bumps the drive shaft kind of "thumps" into the back of the transfer case. Do I have a shaft and/or bearing going out in my trans case? Everything else is functioning properly.
Think I might have solved my problem, slip yoke?????? I will update after I lube er up.

 

[gavin]

there's no slip-shaft at the t-case, but you may check for any excessive play in the yoke.

another good possibility is a lack of grease in the slip yoke on the shaft itself. It's been known to get noisy/clunky if there's a lack of grease.

 

[jsfordboy02]

Its the slipe yoke on the drive shaft. What grease do we recommend using? White lithium doesnt really seem to be cutting it.

 

[gavin]

some real grease grease. the gooey stuff, lol.
same stuff you would use for balljoints would be sufficient, I would think.

although it appears Ford makes some specific stuff.
Motorcraft spline grease pt# XG-8 is a small 3oz tube.
D2AZ-19590-A is a larger tube.