Quote:
Originally Posted by lmabadie
So what happens when because of failure of the front differential the shaft from the transfer case is removed to run the car as a 2WD? Will this make the transfer case to run "locked"? Is this OK or can damage it?
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It shouldn't hurt your transfer case to drive without the front shaft on, but if your carrier or pinion bearings are going out, you should not be driving your jeep around because your front differential is still spinning which is still going to damage your front end whether or not you are transferring power to it through your driveline. The only way your front end could last longer would be if you had hubs that you could unlock and that would in turn disconnect your outer axle shafts from your from the hub and not turn the differential.
Like Draken said, a NP242 transfer case is a GREAT swap for the NP249 if you want the fulltime option and most do. You could also swap in a NP231, which is more stout and has more aftermarket support for it but it may not be practical for the way you use your jeep.