no
No
The reverse gear linkage would be attached to the transmission, not the transfer case.
The problem is most likely in the transfer case or the linkage. The transfer case is bolted to the rear of the transmission on that truck. The linkage could be misadjusted, there should be three distinct positions for the transfer case, Neutral, Low and High. If you suspect the linkage disconnect the linkage and manually put the transfer case in each position and try it to see if it works, if it does it's the linkage if not the problem is in the transfer case itself.
No, engine transfer case, transmission and drive axles only. Not steering.
A broken shifting fork in the transfer case will cause your vehicle to stay in the gear that it was in when the shifting fork broke. Broken shifting linkage can also cause the problem.
cracked transfer case or linkage may need adjusting
transfer case linkage may be out of adjustment. instead of being in 4 wheel drive it may be in neutral in the transfercase.
That depends on what is wrong. A linkage part would be a few dollars. An axle or transfer case would be thousands.
To install a shifter linkage on a NP model 205 transfer case it takes a few steps. Start with a new gasket positioning the transfer case to the extension, install the bolts and nuts, connect the shift rod to the shift lever arm, secure with the spring and washer, connect the front wheel shaft to the case, connect the rear axle and then you are done.
There is no transfer case on a 2 wheel drive truck.
No. If you have a manual shifted transfer case (a lever in the floor) the problem is mechanical. You either have a linkage problem or a stripped front axle shaft. If you have an electric shift transfer case you will need to have it checked for codes to know if the problem is there or not.
The encoder motor is located on the transfer case. The transfer case is on the driver's side of the truck. It resides between the front drive line, and the wall of the transfer case.