... Are you having an issue with your 4x4 system?
Both items are not critical in terms of preventing you from activating 4x4.
I have no idea when the washers and o-ring disapeared. The rotors have been off this thing several times, and the hubs volunterily come off when I take the wheels off, so who knows?
My auto hubs haven't worked right for about 3 years or so, as close as I can recall. Never really engaged them much. It started as a ratcheting and being stubborn to disengage. Ratcheting kept up in 4x2 for up to a 1/2 mile.
Last winter, they were no-go, not even making a noise. I got stuck in some fresh powder, suffering the indignity of my buddy towing me behind his Tacoma.
:/
Hubs fell down in priority this past year till I realized the snow was coming again. Cleaned them out this past weekend. They were thoroughly and well packed with grease.
Didn't help. I DID realize the hub's outer 3-prong cam has no spring action. Just rattles up and down free about 1/4". I've yet to even get a really good look at the hub mechanism disassembled. Found one good link with pictures of the operation with outer hub casing removed.
I seem to have a broken "wavey" spring that gives the pressure to engage the outer cam. Also about 1/16" play up/down of the hub's cam mechanism.
There was still a small amount of dirty grease draining from the hubs after a pretty good soak/clean/ATF, but hardly enough to affect operation if hubs were good, IMO.
I know I need to follow the forum's excellent troubleshooting guide. I've read several stickies and threads, but just haven't crawled under to rotate the shafts.
I hear the 4x4 module in the back clicking. Dash and panel 4x4 illum. I have 2L.
Hubs are most likely blown. I've been perusing the Warn units, and have pretty much made my mind up to convert to manuals as my HiLux has. It's more time than $ now, but neither are that plentiful.
I'm also considering the heavier Jeep hubs, and have been reading old threads with pros/cons. As I don't have plans to beef up the rest of the front axle in the forseeable future, probably wouldn't be needed, though.
On a side note...I've also NOT ruled out the possibility that the transfer case selector gear, worm gear or motor are not the culprit. I've studied the stickies here, but just haven't crawled under with a wrench to check.
Hear's another question I have...with both dash and panel 4x4 lights illuminating, as well as the fact that I engage 2L (when selecting 4L), that would be a sign the transfer case is operating? Yes? Maybe?
Regardless, cleaning the, most likely blown, auto hubs allowed me to study how they work. They'd always been an enigma to me. Push button, work not/work. That was the extent of my knowledge of them.
Sorry for the book. Glad for any feedback.