Stock Tire Size for 1979 FJ40

Discussion in '40- & 55-Series Tech' started by nutsaboutsoccer, May 15, 2007.

  1. What is the stock size tire and modern day equivalent for 1979 FJ40? My owner's manual says 5-1/2JJ x 15 but I can't find table with modern day equivalent.
    Thanks,
    Ted
  2. Sorry, 5-1/2jj x 15 is the wheel size. Original tire size in my manual shows to be H78-15B. So, what is that equivalent to today?
    Thanks,
    Ted
  3. Ended up finding my own answer. Stock H78-15B or HR78-15B is equivalent to today's 205/75 R15. This website has a good tire comparator to compare your tire with stock to see what your speedometer error is.
    http://www.dakota-truck.net/TIRECALC/tirecalc.html
  4. Wadesters

    Wadesters SILVER Star

    Messages:
    792
    Location:
    Newnan, GA
    Tires

    If you are in need of tires I have a set of nearly new stock size.
  5. JasonH

    JasonH

    Messages:
    2,009
    Location:
    McKinney, Texas
    I see your rig is doing pretty well on ebay. Good luck! Maybe you can bring it to the LSLC meeting tomorrow night so we can check it out.

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