Thanks, that’s exactly what I have...as in not a double cardan joint. Sounds like they are phasing out the zert (zerks, zirt, zirks?? Lol) so this may be why we are all having discrepancies.
What is your bed size/cab type?
The reason I ask is that I believe you are correct, but perhaps not because they are phasing zerks, themselves, out? Based on McGov's pic, it appears that not all of these trucks have
an actual "double cardan joint." And that may account for the differing number of zerks members are counting.
I'm not near my 2014 DCLB atm, but I suspect that shorter wheelbase trucks may not have double cardan joints, which is why I'm curious to get under my own truck, since it's a DC with the 8' bed.
The diagram in the first link, below, shows that a double cardan joint actually has two "spiders"
(the 4-way "cross" that has the four, roller-bearing caps). These spiders are linked by what is called a "coupling yoke"
in the diagram and write-up, below:
What keeps the shafts of a double cardan 'evenly spaced' so that it functions as a CV joint?
So, less "spiders" = less "zerks," right?
Wait--scratch that. McGov's
2017 does not appear to have a "double cardan joint," and yet he personally greased 8 Zerks. So there goes that theory....
So, it seems either of your two theories could be correct, i.e., since thearborbarber's
2018 has ZERO zerks, it would seem Toyota is
phasing them out. Or, perhaps Toyota is using both "Zerked" and "Zerk-less/Lifetime" U-joints, depending upon what Spicer sends them on a given day?
Hopefully a Toyota tech will chime in.
Anyway, on a related note, the screenshot I attached, below, entitled "Spherical Centering Bearing in Double Cardan.jpg"
shows the static view of the "spherical centering bearing" (that I never knew was there--LOL) inside a double cardan joint.
The (rather dense read) linked below does support the idea that double cardan joints are used for longer wheelbase vehicles, when it says:
But it's worth scrolling to the bottom of the write-up linked below, which shows a "see through" animation of a double cardan joint, in motion
"A popular use of double cardan joints is when two driveshafts are required over a long distance between the transmission and axle."
--it's pretty cool.
How does a centering yoke work in a double cardan to keep the angles equal?