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Frank, Better pull 'er down out of there. They indeed would sometimes let that rear bearing snap ring jump out of it's groove, but yours sounds a little deeper. You'll probably need a range fork or at the very least the nylon wear pads on that fork. Drop the two driveshafts, remove the linkage and take the transfer case loose from the adaptor by removing the bolts with a 15mm wobbly socket. Just leave the adaptor and rear motor/transmission mount on the truck. Stand 'er on her nose on the bench and put a six inch 2X4 block under the front yoke to balance it out. Go in from the rear of the unit and work down until you can spilt the case and remove the output portion of the drive assembly. If all looks okay in there, replace that faulty shift fork and/or pads and carefully reassemble paying particular attention to those snap rings and their locations. You'll have to "lift" the output shaft to install that last snap ring. They are not very complicated to do and this will save you a ton of money if you can do it yourself. You'll need three quarts of ATF, an adaptor gasket and a tube of anabolic (sp) sealer from GM as the transfer case itself uses no gaskets. Allan
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