Interesting that the capacity listed is 3.9 pints but actual quantity to top off is right at around 3.9 quarts! Coincidence? Also interesting that you pull out only 2 quarts from factory fill which is 3.9 pints. Could this be a factory worker filling the fluid to "spec" versus to bottom of fill hole, and could it be a typo that they said pints when it should be quart?
If all of this speculation is true, could 4x4 libbys be at risk right out of factory?
There is a very good chance that the chain in my transfer case is stretched and that's the cause of my vibration. I'll know more after tomorrow if the new trutrac doesn't fix it. I had the same problem with the capacity issue, also with the diffs. The manual was almost a quart off for the front diff. Seems to me that the factory was cutting corners. I know for a fact that they build their cars based on 100,000 miles. They pay close attention to every step in the production process and save pennies whenever they can. I wouldn't trust the writes capacity when it contradicts the procedure, especially if it's on the short side. I'm driving around with 3 quarts for the moment but intend to top it off when I get a chance.
Perhaps the final note: filled up to bottom of fill hole and tcase did a "purge" of the excess. Just fill to spec amount rather than to bottom of fill hole. Must have an overpressure relief valve on it.
I topped mine off shortly after my last post. I noticed the front seal is seeping fluid. Not sure if it's related to the problems I'm having with the front axle but it's not likely. Maybe these aren't supposed to be filled all the way. If that's the case though, how does one check the fluid level?
The tricky part is how much do you put in. The spec amount or fill to bottom of fill hole as the manual says both, but the amount isn't close to the same. The answer is to fill it to the spec amount instead. Filling to bottom of fill hole is too much.