viscous coupler

A simple question i think. My viscous coupler is bad is binding up on sharp turns. Before I spend the money for a new one or used transfer case, does anyone know if adding a friction modifier to the fluid or replacing the existing fluid with the Ford transfer case fluid would free up the...

I bought a used 2004 Mercury Mountaineer 4.0 AWD, at the time I didn't realize it was so common to remove the front driveshaft on these. A couple months later I found out the AWD Mountaineer I had just bought is RWD. The front drive shaft is missing. At the time, when i bought it, the car did...

Little background, It's a 2000, XLT Explorer, V8, AWD 163k. Not sure of what Tcase or transmission. Anyways. I'm not sure what the issue is. Here is a video of what it does. http://www.youtube.com/watch?v=-Do440UFanQ It doesn't do it nearly as bad on dry surfaces. But it still does it...

My 97 Mountaineer makes a very loud and noticeable clunk. I bought this truck and , unkown to me, the previous owner had removed the front driveshaft. I discovered this after work, finding it resting against a coworker's car. I got a junkyard driveshaft, figuring that the viscous coupler was...