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Another JBA post

Discussion in '1st Gen Tundras (2000-2006)' started by RR60, May 13, 2020.

  1. May 13, 2020 at 6:15 PM
    #1
    RR60

    RR60 [OP] New Member

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    A little confused if I got everything right. Thanks for any help.

    2003 Tundra V8 and need to replace cracked manifolds. I am normally more of a OEM guy. But seems in a few case like this. Aftermarket may actually be better.

    I did read thru post on what most seemed to most recommended.

    Will take to my local muffler shop. And want to make sure I have everything they need so no surprises.

    Also not sure on some part numbers or parts could not find..

    1. Get the JBA 2010S summit has for 483.00 seemed to be the most tested long term.

    2. Get studs and nuts OEM. But I cant find the part#’s

    3. Get percy’s seal 4 good 66080 manifold gaskets.

    4. Want a new o2 sensor for the passenger side so no problems down the road replacing.

    But not sure or the part number for the one I need. Front, rear, left, right?

    5. My son looked under my truck and said a exhaust shield under the driverside looks like it is falling apart. And something about a few clamps for a shield that are rusting thru. I would rather replace or get to much instead being short a item. Also checked Conicelli Toyota part diagram and not sure what I need for this.

    Thanks for any help and suggestions. Still plan on keeping this truck another 10 - 20 years whatever it cost.
     
  2. May 13, 2020 at 6:46 PM
    #2
    revtune

    revtune New Member

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  3. May 13, 2020 at 6:48 PM
    #3
    revtune

    revtune New Member

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    You’ll want to double check those part numbers with your local Toyota dealer. I recommend just going local for those 2 items.
     
  4. May 13, 2020 at 6:51 PM
    #4
    revtune

    revtune New Member

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    “But not sure or the part number for the one I need. Front, rear, left, right?“

    o2 sensor = Rock Auto is your friend.
     
    FrenchToasty likes this.
  5. May 13, 2020 at 7:01 PM
    #5
    FrenchToasty

    FrenchToasty The Desert rat, 6 lug enthusiast

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    theBIGnaud and revtune[QUOTED] like this.
  6. May 13, 2020 at 8:24 PM
    #6
    TX-TRD1stGEN

    TX-TRD1stGEN Privileged

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    I don't think you need to replace the studs. Just the nuts
     
  7. May 13, 2020 at 8:55 PM
    #7
    RR60

    RR60 [OP] New Member

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    Yes that is where i checked. But for O2 sensor there is FRONT, REAR, LEFT, RIGHT
     
  8. May 14, 2020 at 1:50 AM
    #8
    3dkn

    3dkn New Member

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  9. May 14, 2020 at 4:29 AM
    #9
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Go to an online parts store and plug in your VIN for final confirmations.

    upload_2020-5-14_7-27-34.jpg
    upload_2020-5-14_7-28-32.jpg
     
  10. May 14, 2020 at 7:37 AM
    #10
    FirstGenVol

    FirstGenVol Brake Czar

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    When I plug in the part number for the nut on Cool Springs toyota, it says it doesn't work with my 02. Can't imagine it wouldn't work though. When I plug in the part number for the bolt/stud, they don't even sell it.
     
  11. May 14, 2020 at 7:58 AM
    #11
    2006Tundra

    2006Tundra Financially Irresponsible

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    Is there a reason why someone would replace the studs and nuts? Is there a need to?
     
  12. May 14, 2020 at 9:03 AM
    #12
    revtune

    revtune New Member

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    southern region trucks, you probably don’t need to. Northern trucks, I would think that once you start turning that manifold nut, the stud might want to come with it.
     
  13. May 15, 2020 at 4:47 AM
    #13
    RR60

    RR60 [OP] New Member

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    Thanks for all the advice.
    last question.
    Guy at Toyota by email,mentioned I may want to get the studs and nuts for manifold to downpipe flanges #90080-12007
    Do these go on the header or Y pipe?
    Would these be used going with JBA headers instead of OEM manifolds.

    Almost tempting to just go ahead and also get the JBA y pipe. But dont think I need.

    Also did hear back from Toyota parts for the o2 sensor. below
    "
    Quote "Part number for that is 89465-09320. This is for the oxygen sensor which is after the catalytic converter and located on the passenger side mid-pipe."

    So the only O2 sensor is on the mid-pipe on my model? I thought some said on the manifold. But maybe that is why I had so much trouble finding a part number myself. Rock auto list some as right, left, front rear. But in my post i still did not know which one I should replace.
    Is there really morethan two and anyone know which one I need.
    Thanks
     
    Last edited: May 15, 2020
  14. May 15, 2020 at 5:08 AM
    #14
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Ye. I’m looking at said y-pipe also only because I want to do all this ONE TIME and not have to revisit this job for 18 more years! Only X factor are the Cats which if they go bad are easy enough to replace.

    I’ve been studying the Toy site muffler diagrams, but haven’t made notes yet. The bolts/nuts needed portion is vague. Probs will need to do like you did and consult with the friendly high dolla stealership parts dept.
     
  15. May 15, 2020 at 6:50 AM
    #15
    noahrexion

    noahrexion New Member

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    When I replaced mine I had wished that I did the Y pipe as well after seeing how restrictive the stock one seems (crush bent).

    The #90080-12007 studs go on the collector flange of the manifold, I didn't buy any of those when I did mine - just soaked them for a few days prior and reused everything luckily.
    upload_2020-5-15_6-49-59.jpg
     
  16. May 15, 2020 at 8:22 AM
    #16
    revtune

    revtune New Member

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    I would recommend not messing with the stock y pipe/resonator section. It might look restrictive but its actually a good design and IMO creates the needed pressure for the 2 pipes and exhaust gas coming together instead of colliding together and slowing down.
     
  17. May 15, 2020 at 1:53 PM
    #17
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    You can really see the o2 Bung offset differences between the OEM and JBA in your picture.
     
  18. May 15, 2020 at 2:33 PM
    #18
    Darkness

    Darkness Allergic to white

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    Its true that the y has a crappy joint but it isn't doing any harm. I replaced mine and couldn't tell the difference at all, other than I was down $200.
     

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