Quote:
Originally Posted by Cruiserdrew
Defensive?-it's just the internet. I've had this apart awhile ago, and what I remember is that the rear output shaft is coupled to the rest of the t-case by the VC. I totally understand that the center diff is still there.
It's been awhile, but there are 2 sets of splines on the VC, and the torque is coupled one way when open and another when the center diff is locked. What I am trying to impagine is how it is coupled at all with the VC out. I'll have to pay closer attention next time I'm in there to replace the output seal. It is not an intuative device like most things with gears and bearings.
If you have pics of the tail section of the 91 transfer case open, I would like to see them for comparison. I thought the VC was added due to the pecularities of the ABS system and to bias some torque to each axle in the setting of one axle wheel spin. I have never heard that it was added to control clunkiness. Maybe, though! It is an odd and poorly understood device in this application, at least by me.
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This seams to come up over and over again, people have the impression that the VC is a transmitter of drive torque to the rear axle, the 80 is not like an AWD Audi or Subaru or LR where thre is no direct connection to one axle, in our case the VC is used differently it is a limited slip device that dampens the center differential. the rear drive runs right through the center of the VC from the center diff to the rear output flange uninterrupted, the VC is splined to that shaft and to the center diff carrier, since for the center diff to differentiate between the front and rear outputs the rear shaft and the diff carrier have to spin at different speeds, the VC splined to both will resist this differential rotation.
now with the VC removed it is still full time 4 wheel drive, both axles are sill driven like before but the center diff is no longer limited slip, if one axle or the other gets on ice for example that axle can receive all the drive RPM (can be either front or rear) , exactly the same as the 91/92 FJ80, same as a open unlocked diff in an axle, the CDL will still work and when needed can be locked to keep the front and rear drive shafts locked to each other rotating at the same RPM like a part time T-case.
http://webpages.charter.net/raventai...20TRANSFER.pdf