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Technical Dating Tires

Discussion in 'The Hokey Ass Message Board' started by moparbrothers, Feb 27, 2021.

  1. moparbrothers
    Joined: Oct 9, 2017
    Posts: 42

    moparbrothers

    Hello,

    My old bias ply tires finally are going to get replaced after 2 went flat over the winter months.

    I have been driving on them for about 10,000 miles. They were on the car when I pulled it from the old barn. And have no idea how old the tires are. They are old Allstate Tires. Did tires this old come with date codes? This was stamped on the side wall LP2449

    The car is a 1950. Just curious on how old these old jewels are before I put a set of radial diamond backs on them. FCC141A9-68E6-43D6-A427-1EF8883AE2AF.jpeg 53148FF1-2D24-40CF-B7EA-D19782190303.jpeg 253BABE7-855F-4096-A119-4F9CAFD4DAA6.jpeg
     
    kidcampbell71 likes this.
  2. Boneyard51
    Joined: Dec 10, 2017
    Posts: 6,451

    Boneyard51
    Member

    I prefer girls!


    Seriously, I do not know when tire date codes started, but if yours has one it would be the 2449 , number, as it is “ changeable” .



    Bones
     
  3. 302GMC
    Joined: Dec 15, 2005
    Posts: 7,867

    302GMC
    Member
    from Idaho

    Likely mid 1960s.
     
    Stogy likes this.
  4. TrailerTrashToo
    Joined: Jun 20, 2018
    Posts: 1,293

    TrailerTrashToo
    Member


  5. Jack E/NJ
    Joined: Mar 5, 2011
    Posts: 839

    Jack E/NJ
    Member
    from NJ

    They got a DOT mark. Means 1966 or later. Not hamb friendly. Might as well get new tires. Jack E/NJ
     
    anthony myrick and Stogy like this.
  6. Budget36
    Joined: Nov 29, 2014
    Posts: 13,231

    Budget36
    Member

    Tire be old. Sidewall cracks are never a good thing to try and drive on.
    Could be you’re just curious as to how long they lasted?
     
    5window and Stogy like this.
  7. G-son
    Joined: Dec 19, 2012
    Posts: 1,290

    G-son
    Member
    from Sweden

    Just to be clear, old cracked rubber is not good on any date.

    Joking aside, those have had a long life. Should probably have been retired (pun intended) quite some time ago.
     
  8. Always good to find out their age before you start dating....:)
     
    Happydaze, scotts52, Hnstray and 14 others like this.
  9. Dave G in Gansevoort
    Joined: Mar 28, 2019
    Posts: 2,660

    Dave G in Gansevoort
    Member
    from Upstate NY

    Just pull a Burt Monro, and shoe polish the sidewalls. Afterall, he went way faster than any of us have a right to be driving on the street.

    Seriously, those tires are history...
     
  10. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 31,229

    Jalopy Joker
    Member

    - Yikes!
     
  11. 55blacktie
    Joined: Aug 21, 2020
    Posts: 793

    55blacktie

     
  12. 55blacktie
    Joined: Aug 21, 2020
    Posts: 793

    55blacktie

    Dave G, wonder how many people need to look up Burt Munro. Hint: He didn't play the mandolin.
     
  13. squirrel
    Joined: Sep 23, 2004
    Posts: 56,040

    squirrel
    Member

    449 is the three digit version of the date code, as noted it is from before the year 2000. So it could be the 44th week of 1979, 89, or 99.

    Since they're bias ply, you're probably ok to keep driving on them if they don't show any swelling or significant cracks...but yeah, might be a good idea to get new tires one of these days.

    I'd stick with bias ply, if you can afford it and the ride is ok.
     
  14. grumpy65
    Joined: Dec 19, 2017
    Posts: 920

    grumpy65

    Tires, brakes, steering and suspension. The things between you and your maker.................:eek::eek::eek:
     
  15. Truck64
    Joined: Oct 18, 2015
    Posts: 5,325

    Truck64
    Member
    from Ioway

    Dim lights , soft music. Just be yourself!
     
  16. moparbrothers
    Joined: Oct 9, 2017
    Posts: 42

    moparbrothers

    As stated in my post above. I will be purchasing a set wide white radials. Looking forward to seeing how they preform
     
    AHotRod likes this.
  17. Budget36
    Joined: Nov 29, 2014
    Posts: 13,231

    Budget36
    Member

    So you'd run them on that little Chevy you have?
     
  18. Stogy
    Joined: Feb 10, 2007
    Posts: 26,348

    Stogy
    ALLIANCE MEMBER

    When dating tires tread carefully...;)
     
    Last edited: Feb 28, 2021
  19. squirrel
    Joined: Sep 23, 2004
    Posts: 56,040

    squirrel
    Member

    No, but I'd run them on the car they're on. I doubt it gets up to 130 mph.
     
  20. 5window
    Joined: Jan 29, 2005
    Posts: 9,540

    5window
    Member

    You can tell the tires are really old because they say "Made in USA". :)
     
  21. I was ready to buy these Coker red lines with titties still on them at $50 each...until he sent me the date code photo, they were made in 2009, so a new 12 year old tire.
    You can't judge a tire by it's looks sometimes.

    00h0h_iWZbDGRzmQ9_0lM0t2_600x450.jpg 00z0z_amdxGzsVBjM_0lM0t2_600x450.jpg
     
  22. Stogy
    Joined: Feb 10, 2007
    Posts: 26,348

    Stogy
    ALLIANCE MEMBER

    Bia Plys are not Radials therefore rated differently, radials are a BIG deal after 6 years used or not...

    That is not to say they being both shouldn't be absolutely scrutinized...

    He didn't show the tread...that tells a story too regarding pass...
     
    Last edited: Mar 1, 2021
    Jibs and Elcohaulic like this.
  23. squirrel
    Joined: Sep 23, 2004
    Posts: 56,040

    squirrel
    Member

    those Coker red lines are radials, aren't they? I would not use them.
     
    Stogy, Moriarity and Bandit Billy like this.
  24. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 12,361

    Bandit Billy
    ALLIANCE MEMBER

    Radials or not, I wouldn't run Cokers.
     
  25. Some of you guys sure are wound up tight, probably have a closet full of pitchforks and torches at the ready !
    The post was about checking date codes, regardless of the type of the tire even if the tires look new, but of course you couldn't possibly see that for your own nose being in the way. Hopefully you don't have radials on your daily drivers or you're going to have to stick your own ass with your pitchforks.
     
    RMR&C likes this.
  26. big duece
    Joined: Jul 28, 2008
    Posts: 6,830

    big duece
    Member
    from kansas

    Tried dating tires for a while, just too tiring...
     
  27. Stogy
    Joined: Feb 10, 2007
    Posts: 26,348

    Stogy
    ALLIANCE MEMBER

    I replace my radials after 6 years. I'm glad you passed on them...the unfortunate reality is someone will be unaware or not caring of well documented details on such tires will purchase and use them and hopefully no one gets taken out should the worst happen...especially if that happens to be someone outside of the radius of the one who made such a risky decision...Rollers no problems of course...

    Bias Plys have different characteristics...combine this with changes over the years with the Coker Company they do have some isolated quality issues that are well documented in numerous Threads add nauseam like ALL tires...but the Bias Plys again don't share the Radial guidelines for replacement due to their construction, materials and the presence of DOM information.
     
    Last edited: Mar 2, 2021
  28. Fortunateson
    Joined: Apr 30, 2012
    Posts: 5,352

    Fortunateson
    Member

    I have a set that are older than those red lines. Correct Michelin tire for my OT LBC and I intend to use them for a once a year show about six miles from home. I'll drive there and back at thirty miles per hour. I think I'll be OK. The tires were kept in a cool, dark place for the whole time after they were bought new.

    I'm quite curious about radial degradation. I know all about the study based out of Phoenix AZ but up in in Vancouver I'm positive that their data doesn't apply. Does anyone know of a study done out of Seattle or Portland OR. I'm suspecting the whole six year thing is brought on by the legal dept. of the various tire companies being overly cautious and encouraged by the sales dept. we don't seem to have any tire blowout accidents reported in the media. Maybe I'll have to contact our provincial insurance corp. for more details.

    I've really enjoyed the humour in this thread...
     
    HemiDeuce, Flat Six Fix and Stogy like this.
  29. squirrel
    Joined: Sep 23, 2004
    Posts: 56,040

    squirrel
    Member

    Even in Arizona, old steel belted radials will come apart while sitting inside a dark garage....btdt.
     
  30. Moriarity
    Joined: Apr 11, 2001
    Posts: 31,087

    Moriarity
    SUPER MODERATOR
    Staff Member

    The way I understand it is the rubber ends up letting go of the steel belts in a Radial tire. Bias plies do not have steel so they do not suffer from the same problems. Radials in my opinion just plain look wrong on a traditionally styled car and you couldn't pay me to run em. I don't understand all the Coker bashing. I have Coker bias plies on 6 cars and every single one of them drives as smooth as a gravy sandwich at 70 mph and balanced with very little weight. Some of the cars are on their second and third sets and never a single problem. Am I the only one??
     

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