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post #16 of 29 (permalink) Old 09-22-2018, 08:55 PM
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Originally Posted by Rob's Inferno View Post
My 2017 has zero on the rear driveshaft,front has 2 or 3 i dont remember.
Zero serviceable zert fittings? Not a single one on a U-joint? Uhhhhh. O.K.

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post #17 of 29 (permalink) Old 09-22-2018, 09:18 PM
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Originally Posted by McGovTundra View Post
Zero serviceable zert fittings? Not a single one on a U-joint? Uhhhhh. O.K.
That's correct.Rear has none,only front driveshaft has them.I used a flash light and thoroughly checked it.Appears to have spicer life joints which are sealed

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post #18 of 29 (permalink) Old 09-22-2018, 09:23 PM
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Originally Posted by craigswanson View Post
Brian, that's what I have on my 2013 too. No idea how to get a gun on the two front drive fittings.
If your grease gun came with a flexible tube thingy, that's another way to get to them. The front is a bit of a PITA, but it can be done with a flexible tube.

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post #19 of 29 (permalink) Old 09-22-2018, 09:55 PM
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Originally Posted by Rob's Inferno View Post
My 2017 has zero on the rear driveshaft,front has 2 or 3 i dont remember.
I wonder if the rear u joints were replaced since new, therefore no grease zerts? Interesting.
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post #20 of 29 (permalink) Old 09-23-2018, 09:55 AM
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I have a 2017 DC 4wd build date 7-17, I was attempting to grease the “propeller” shaft today and found only two grease fittings on the front shaft right in the center of the u joint. I searched the rear for about ten minutes even moving the truck and could not locate any.


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post #21 of 29 (permalink) Old 09-23-2018, 10:29 AM
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While I'm still trying to full "understand" a rear drive line with NO zert fittings..........I want to point out that the zert fittings can get very dirty and covered up with grime. Especially if they've been greased and had a little overrun of grease that wasn't cleaned off at the time and which will gather all kinds of shit. All of this making them a little difficult to identify. Especially if you're not 10,000% sure of what you're looking for.

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post #22 of 29 (permalink) Old 09-23-2018, 05:14 PM
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Soooo...new Tundras have no rear driveshaft grease zerts? Seems odd they would phase out the rear zerts, and not the front. And Mcgov...how is it that you have 8 zerts, and I have 5? So strange. Almost like spicer is providing Toyota with whatever they have available at the moment.

Last edited by Brian20; 09-23-2018 at 05:16 PM.
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post #23 of 29 (permalink) Old 09-25-2018, 07:44 AM
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Not to be "that guy," but they're generally called "Zerk" fittings:
https://locknlube.com/products/alemi...d-zerk-fitting

McGovTundra,

Some kind soul posted a lube chart from a 2015 FSM, that looks just like yours--I've attached it, as my copy seems to be a bit bigger/easier to read.

You'll notice some Zerks are supposed to be hit with Lithium-based grease, and others with Molydenum Disulphide (depending upon how "anal" one wants to get). Since I already have one grease gun set up with "moly," for the backhoe, I guess I'll "play by the rules" and give each the flavor it likes (though I'm sure ANY grease is more than most get, right?) LOL

Where did you get your FSM?
Do you have both hard and electronic copies? I have a 2014 Tundra, and would like to purchase/"obtain" an FSM for a 2014, without paying more than I have to....

Thanks in advance,

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File Type: pdf Lube-points--2015 Tundra--Lithium and Moly Greases.pdf (248.0 KB, 36 views)

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post #24 of 29 (permalink) Old 09-25-2018, 08:58 AM
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Originally Posted by ToyotasForever View Post
Where did you get your FSM? [/B] Do you have both hard and electronic copies? I have a 2014 Tundra, and would like to purchase/"obtain" an FSM for a 2014, without paying more than I have to....

Thanks in advance,

ToyotasForever
I have the FSM only electronically. I don't recall eggzactly where I got it from. No hard copy. But with the .pdf at over 12,000 "pages" a hard copy might need a dolly cart to move around.

Yes. Your copy is cleaner. Mine was a scan of a print out and I posted it before I realized I had a good, pure copy already. Thanks for the cleaned up copy.

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post #25 of 29 (permalink) Old 09-25-2018, 10:09 AM
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McGov - if it’s not too much to ask, can you post an actual picture of the double cardan grease points on your truck?
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post #26 of 29 (permalink) Old 09-25-2018, 06:55 PM
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Just went under my 2018 crewmax and there aren't any grease fittings on either shaft. None on the front or rear shaft, none in the crosses of the u joints and none on the end caps.

On the plus side the joints are nice Spicer Lifetime U joints.

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post #27 of 29 (permalink) Old 09-25-2018, 07:33 PM
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Originally Posted by Brian20 View Post
McGov - if it’s not too much to ask, can you post an actual picture of the double cardan grease points on your truck?
Here's a shot of it. I'm not able to get close ups at this time.
Attached Images
File Type: jpg Tundra double cardan joint 1.jpg (178.2 KB, 42 views)

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post #28 of 29 (permalink) Old 09-25-2018, 07:51 PM
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Originally Posted by McGovTundra View Post
Quote:
Originally Posted by Brian20 View Post
McGov - if it’s not too much to ask, can you post an actual picture of the double cardan grease points on your truck?
Here's a shot of it. I'm not able to get close ups at this time.
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.

Last edited by Brian20; 09-25-2018 at 08:40 PM.
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post #29 of 29 (permalink) Old 09-26-2018, 03:54 AM
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Question Not All Tundras Have "Double Cardan Joints"?

Quote:
Originally Posted by Brian20 View Post
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.
Brian,

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?
https://www.quora.com/What-keeps-the...-as-a-CV-joint

So, less "spiders" = less "zerks," right?

EDIT:
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:
Quote:
"A popular use of double cardan joints is when two driveshafts are required over a long distance between the transmission and axle."
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--it's pretty cool.

Source:
How does a centering yoke work in a double cardan to keep the angles equal?
https://www.quora.com/How-does-a-cen...e-angles-equal
Attached Images
File Type: jpg Spherical Centering Bearing in Double Cardan.jpg (23.7 KB, 21 views)

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Last edited by ToyotasForever; 09-26-2018 at 08:49 AM.
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