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Posted by Clint Dixon on Wednesday, May 27, 2009 at 11:55:41 :
In Reply to: Drive Shafts posted by Greg in Indy on Wednesday, May 27, 2009 at 10:42:34 :
In addition to the obvious three driveshafts, you also have an additional forth shaft that is easy to forget. This is the theoretical shaft that "passes through" the transfer case. In effect, the transfer case acts just like any of the other driveshafts. It has a yoke at each end *(front input, rear output). The only difference is that there is a case and a whole lot of gears contained within, instead of the simple tubing found in a driveshaft.
The yokes at either "end" of the transfer case need to be phased the same as the yokes at either end of a driveshaft. This is easy to do. Move the control levers of the transfer case to find the false neutral. With the transmission in neutral, rotate the short intermediate shaft betwee trans and transfer case until the input yoke at the front of the transfer case is phased with the yokes at the back. Place the levers back into 2WD or 4WD position and you are done.
The thing to remember is that each time you use 4WD low range, the theoretical shaft through the transfer case is going to become out of phase. You will have to repeat the same process after each time after using 4WD low, unless you get extremely lucky and happen to shift back into high range at the exact moment the yokes are phased.
It makes a huge difference. I can tell immediately when I drive down the road if I have used low range and forgotten to phase the transfer case.
Don't worry too much about trying to phase the front axle output yoke on the transfer case to the other three.
Junior
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