Agree, the spark plug seals are more important than the half moons, also only need about half that much RTV, or less. The PCV/grommet, not so much, it can be replaced anytime, with the cover on.
After doing a bunch of there can just about predict where the parts/tools are going to fall. Got...
There is a painting forum here, likely has posts about filling, sanding out chips and repainting?
https://forum.ih8mud.com/forums/paint-and-body.131/
The power sanding tool of choice would be a DA sander, or hand sand. Repair strategies include; sanding each chip out or filling them, high...
Knowing where the power is interrupted is helpful. With the key to run, is there battery ish voltage at the B+ term in the diagnostic box on the firewall? If not, is there power at both sides of the EFI fuse? There are little contacts on top of the fuse for testing. If none at the fuse, wiggle...
The diffs, the light is purely an indicator, other than that, useless. The CDL, the circuit that turns on the light, also turns on the axle lockers, so if it's failed they wont work. The most common fail is the switch, sometimes it can be exercised and made to work. If/when it needs to be...
One cable runs both. With age, the grease gives up, causing them to bind, make noise, etc. The cable can be pulled out of the sheath, cleaned and greased, is pretty easy and sometimes brings joy.
The bushing limits grease migration between the knuckle and the hub. As long as the knuckle isn't overfilled (packed full, no air space) it's pretty effective. The other cause is axle seal failure, can cause the thinned grease to be pushed into the hub.
The birf to drive flange splines should...