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Check Your U-Joints

Discussion in '3rd Gen. Tacomas (2016+)' started by splitbolt, Jan 5, 2016.

  1. Apr 29, 2019 at 3:04 PM
    #1481
    scifidelity

    scifidelity Well-Known Member

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    So in follow up to my post yesterday (where I said I greased 3 zerks on U joints) I managed to find the other 2 that I couldn't find yesterday. I have a 2016 DCSB, so I do have all 5. Really odd how the rear (behind the T case) is a two part axle. I don't think I've owned a truck like that before. The front axle is oddly thin as well.

    Anyway, the two on the front axle are in the middle of the U joint assemblies, whereas the 3 on the rear assemblies are on the side of the U joint. At first I thought one of the front ones would be for a slip yoke, but no, grease immediately came out the u joint assembly seals, meaning it was not going into the axle. Do these trucks not have slip yokes? I'm super confused.
     
    Vbpiper likes this.
  2. Apr 29, 2019 at 3:49 PM
    #1482
    splitbolt

    splitbolt [OP] Well-Known Member

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    It's under the rubber boot.
     
  3. Apr 29, 2019 at 3:53 PM
    #1483
    scifidelity

    scifidelity Well-Known Member

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    thanks, to clarify, on the front drive shaft it's under the boot? Is there one under the boot on the rear? Also, this means there are more than 5 total.
     
  4. Apr 29, 2019 at 4:09 PM
    #1484
    splitbolt

    splitbolt [OP] Well-Known Member

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    No zerks for them; you can disassemble, clean and re-grease if you want. Ford XG-8 grease is what you want to use there.
     
  5. May 8, 2019 at 1:29 PM
    #1485
    KVTaco

    KVTaco Well-Known Member

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    19 OR 4v4 DC AT 3k miles - No rear zerks, just two up front. A couple pumps and they had grease coming out. How long should I expect the non-greasable joints to last in the rear?
     
  6. May 8, 2019 at 1:59 PM
    #1486
    splitbolt

    splitbolt [OP] Well-Known Member

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    Depends...
    On 2nd gens, I've read claims of anywhere from 50,000 to 200,000 miles.
     
    Vbpiper likes this.
  7. May 8, 2019 at 2:50 PM
    #1487
    scifidelity

    scifidelity Well-Known Member

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    Toyota claims these are "lifetime lubes" which we all know if BS. Soooo I think things will get interested in 10 years when many slip yokes cease up. Pretty thrilled with my 2016 right now that has zerks all over the place.
     
    wahoobie likes this.
  8. May 8, 2019 at 5:14 PM
    #1488
    Tacorific

    Tacorific Well-Known Member

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    Yes, you gave two on the front shaft, and none on the rear shaft assembly.
     
  9. May 8, 2019 at 5:25 PM
    #1489
    EdgeCrusher

    EdgeCrusher Well-Known Member

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    Just regreased my 5 this weekend
     
  10. May 8, 2019 at 5:35 PM
    #1490
    VB25

    VB25 Well-Known Member

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    Just checked my 2018s two greasable Us, Both required about 4 pumps before any grease began purging from the seals. There was very little in there..
     
  11. May 8, 2019 at 11:32 PM
    #1491
    Kauai_Tacoma

    Kauai_Tacoma Well-Known Member

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  12. May 9, 2019 at 3:55 AM
    #1492
    AgingDisgracefully

    AgingDisgracefully Well-Known Member

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  13. May 9, 2019 at 4:03 AM
    #1493
    splitbolt

    splitbolt [OP] Well-Known Member

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  14. May 9, 2019 at 7:53 AM
    #1494
    AgingDisgracefully

    AgingDisgracefully Well-Known Member

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    I am very new to this so please pardon any stupid questions. Do we pump until purge everywhere or are there places where we need to worry about hydrolocking?
     
  15. May 9, 2019 at 12:12 PM
    #1495
    over60

    over60 Over70 & still a "Grumpy Old Guy"

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    Pump till you see the fresh NEW grease coming out all 4 bearings....:thumbsup:
     
    AgingDisgracefully likes this.
  16. May 9, 2019 at 1:50 PM
    #1496
    splitbolt

    splitbolt [OP] Well-Known Member

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    You only need to worry if you are met with resistance trying to pump grease or one or more of the seals doesn't purge.
    The former is likely a bad zerk. The latter can be a bound up seal. Rotating the shaft will usually allow it to purge. If it still persists in not purging, it's a possible indicator something's wrong. Up to the individual at that point if they want to replace or run it until it becomes a nuisance.
     
    AgingDisgracefully likes this.
  17. May 12, 2019 at 1:02 PM
    #1497
    Sasquatchian

    Sasquatchian Well-Known Member

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    My '93 4x4 actually had a greasing diagram on the back of the driver's side sun visor. I drove that one 300,000 miles on the original u-joints without a single problem before I sold it. I greased them every couple of years with whatever grease was in the gun, usually Mobil 1. I got under my 2018 OR DCLB AT yesterday (build date June 21, 2018 in Tijuana) and there was a grand total of exactly one zerk at the front of the front driveshaft. Nothing anywhere else. I went back and triple checked every joint to be sure I wasn't missing anything, hand rotating each joint while looking. And for those who don't know already, all you have to do to be able to rotate the rear driveshaft by hand (and mine has a Spicer Balanced Driveshaft label on it) is to jack up only one rear wheel so it just clears the ground while you shut the engine off with the transmission in neutral. Then, when you turn the driveshaft, that wheel will turn as you rotate the shaft.

    It seems like, after slogging through this entire thread that there are quite a few assembly variations over the last few years so the only way to really know is to get underneath and carefully inspect.
     
    TRDSport10 likes this.
  18. May 12, 2019 at 1:55 PM
    #1498
    over60

    over60 Over70 & still a "Grumpy Old Guy"

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    You missed 1…. At the rear of the front shaft.... Remove the shield and there it is....!!:thumbsup:
     
    shakerhood and Vbpiper like this.
  19. May 12, 2019 at 2:55 PM
    #1499
    Sasquatchian

    Sasquatchian Well-Known Member

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    Sorry guys. No I did not miss one. I took the shield off and turned that sucker 360 a couple of times. Nada.
     
  20. May 12, 2019 at 4:11 PM
    #1500
    over60

    over60 Over70 & still a "Grumpy Old Guy"

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    Toyota running boards/Solid Fold 2.0/custom stickers/Anti-Dark LED light under hood/Derped grill/Scoop, etc.
    what year is yer truck..??

    Helps a lot if you put that info in your signature.

    OOOpppS.. sorry I now see its a 2018......WTF.
     
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