Ok Im in the middle of changing a chain and viscous coupling in another 2002 mountaineer and with a second set of hand you can do it in the vehicle by just removing rear drive shaft splitting the cases not very hard at all about a 3hr jod like this compared to 4-8 if you break any crossmember bolt when removing the case from truck. All i have left to do right now is clean case faces and apply a good rtv and put bolt case together and fill with oil it took 2 hours to the point

of course you couldnt do this if you felt the need to change any bearings

wayne

 

Post some pics please. I would love to see what that viscus coupler looks like

 

Will that be same for 2000 lincoln Navigator t-case? Mine AWD was used to kick and it felt like that wheels are jamming up. Also when i enter on highway and give speen it made noise. I research the post on this forum and with help from on of the user i learned that AWD will link the front wheel when ever it sense too much torque or slip at back wheel. I took out fuse 104 to make back wheel drive and since then it's all fine. So far my best guess is clutch inside the t-case. I took it to local t-case rebuild shop and guy drove and mention some about coupling, which sounds like the one you are replacing.... Can you give more info or pix.


Thanks

 

not sure if it would be the same because this tcase has no wires hooked to it so not sure if it would be the but i would guess not because the Nav is an expedition all dressed up so site unseen i would say no

wayne

 

Wayne, I would love to see some pictures and a walk thru of your T-Case rebuild. That would be a very good thing for this site. Hope you took some pics.

I agree about the 2000 Navi. Pretty sure it's not AWD. Does it have a selector switch for 4WD on the dash somewhere?

 

to be honest i didnt take any pictures because it was one of the most straight forward repairs i have ever done and after doing my first one i realized that you dont have to drop the case unless you are changing bearings and seals but if anyone has specific questions i can answer them get me your number and i will call you when its conveinent I can take a picture of the old coupler this weekend and post them


wayne

 

Yes, it does have switch on dashboard with three different setiing..A4wd, 4H, 4L and i leave mine at A4WD unless i want full time 4WD then i switch the selecter to 4H. As far as i understood, t-case in Nav is torque-on-demand which mean when there is slip in the rear shaft, t-case engage front wheels.

Thanks guys

 

Moose; P.M.sent

 

That would be cool, I want to see what one of them things look like.

 

very good parts breakdown

 

So how does the viscous coupler work? do they work like a torque converter?? Or is it that they just provide some power to the front wheels and 4wd lock splits it even?

 

im told they are full of silicone that thickens as the rear wheels slip and then makes the front wheels have a 50 50 power ratio instead of 35 65 ratio

wayne

 

Hmmmm,,,I wonder if that is the culprit of the slipping I feel,,(kinda like a shudder vibration ,,,when turning in my 04' Explorer,,,,If I drive straight,,,it does not do it,,,turn the steering wheel some,,and you can feel this,,,something chattering,,slipping,,,But yet if it is driven far enough,,,it must warm up enough,,,and seems to slip less,,or not at all,,,Has something to do with the front wheels turning turning different speeds then the rear,,,any Ideas??

 

not sure what a 04 explorer has for a t case but here is link to troubleshoot

http://www.rsgear.com/technical/articles/2003_05.pdf

 

Im suprised that with all of the problems i have seem on here with tcase in awd mountaineers that no one else has dug in and fixed theres yet. i have 2 success stories so far me and one happy customeer

wayne