Jack up the vehicle(use jack stands) block wheels for safety. unbolt the universal joints and slide off the drive shaft. you should then be able to un-bolt the transfer case from the rear of the transmission. support with a floor jack while unbolting to keep the pressure off the bolts and keep it from hitting the garage floor if it decides to slip.
Yes. Just put the transmission and transfer case in neutral.
Yes, all CJ's will be the same
Gear oil...usually 75w90 weight. I would use Royal Purple or any synthetic gear oil. That goes for both differentials and the transfer case.
Check your transfer case and be sure it is engaged and not in neutral.
Morris 4x4
Loose fan belt.
153624
80w90
at the distributor. mechanical type
That is exactly how you would tow it on all 4's.
Yes, a Jeep YJ drivetrain can fit into a CJ7, but modifications are often required due to differences in the mounting points, transmission, and axle configurations. The YJ has a more modern design, which may necessitate custom fabrication for proper installation. Additionally, compatibility with the CJ7's existing components, such as the transfer case and driveshafts, should be considered. Overall, while it is possible, the swap can be complex and may require significant adjustments.
Not from the AMC factory... the stock Jeep V8 option was the 304.