Valley Hybrids / Georg ( @orangefj45 ) is very well respected on mud / in the LC community. Search some of his posts if you want to get an idea.
I don't have experience with gear quality myself, but I believe I've read here recently that Nitro's quality is questionable on some stuff. I csnt...
I remember the bumper being a pretty tight fit over the frame rails of my 62, and the flats on the bumper being pretty much flat / horizontal. I used to stand behind the barwork to get good access to the engine bay, hence to rubberized coating.
But... looking at this old pic, I guess it does...
Consider describing what you want in the title (i.e. 2UZ-A440F bellhousing). Probably only 1 or 2 people who are going to know what it is from the part number...
Okay, I'm getting out of my depth here, so if someone with decent experience with H55F internals and how they wear in wants to speak...
I'm thinking since the nut was staked, you can assume it was torqued properly, and the looseness is from wear (excessive? normal?). Torquing and restaking it...
In my FJ62 FSM it is 94 ft-lb. I assume it would be the same with the H55F as with the A440F.... the nut should be staked into the indentation on the shaft to hold it once tight. Was yours not?
One fairly quick thing I'd check before pulling it is to remove the 6-bolt cover on the back of the transfercase (near top of transfer in your pic in post 6) and make sure the stake nut behind it hasn't backed off.
I've seen once where the mainshaft on a H55F walked forward, binding with the...
I've got a slightly modded and moderately 'experienced' early style ARB from my 62. Might be rougher than you want, but its local. I pulled it out of the snow, and will text you some pics once it's free of ice and grass.
I had a positive experience with Delta back in '09 or '10 (KC859 into warmed up 2FE). They've been the go-to on the forum for ages.
This recent thread is the only one I can think of that isn't positive:
https://forum.ih8mud.com/threads/advice-needed-on-delta-cam-regrind-issue.1296321/
Really...
Yellow is the dash pot. It slows the throttle plate as it approaches the closed position.
Red is pcv hose, with the pcv valve at the valve cover. Replacement needs to be oil-rated.
You are being told to use a conventional (non-synthetic) oil with high levels of ZDDP for break-in. Conventional because synthetic may be too 'slippery' to allow the rings to seat / bed in to the cylinder wall an create the good seal you need to establish quickly. High ZDDP because that's the...
Sorry, I see lots of the pics in the old threads in the FAQ I linked are dead....
Pic in the first post of this thread should show where (near #5 spark plug):
https://forum.ih8mud.com/threads/what-is-this-for-well-whatever-it-is-its-leaking.113830/
I think this is a good thread on fixing it...
Verify that it isn't the oil galley plug as @KLF mentioned, that can let go fully and quickly dump all your oil.
https://forum.ih8mud.com/threads/oil-galley-plug-fixes.346362/#post5103955
Okay, here's another that has (atleast in the last 3 pages which I skimmed) quite a bit of discussion of heat and oil migration, and solutions between different mudders running and installing blackbox units.
https://forum.ih8mud.com/threads/northwest-fabworks-black-box.1133865/
If you have an...
Searching "NWF" returns 24 pages of posts, searching "blackbox" returns 20 pages....... I gave you 3 fish, there's a whole ocean out there if you are hungry. ;)