FJ40 Stock Tire Size?

Discussion in '40- & 55-Series Tech' started by RAF, Jan 18, 2004.

  1. RAF

    RAF Guest

    Hey, can anyone tell me the stock tire size that was originally provided on 70's FJ40's. My manual does not give the outside diameter. And at what point (tire size) do you need to start thinking about a lift. I really like look of the 33 x 9.5 x 15's BFG/AT with stock wheels, but I'll go with 30 x 9.5 x 15 if its closer to stock and keeps me from having to install a lift kit.
    Thanks
    Roger
  2. Landpimp

    Landpimp

    Messages:
    13,138
    Location:
    PNW
    28" tall. In other markets 40's could be had with taller tires, like 32" or so. 33x9.5's fit on stock, but I think would rub if wheeled hard. I run em on my stock 82 fj40.....but I don't wheel it.
    [​IMG]
  3. RAF

    RAF Guest

    Thanks landpimp. I dont plan to 4-wheel mine either. Those look great, but might keep it from fitting in the garage. How does it handle with the tall tires?
  4. IDave

    IDave

    Messages:
    7,199
    Location:
    McCall, ID
    Here is a chart from the Landcruiser Owner's manual for 71 (should be same for you) listing a range of tire sizes and recommended inflation pressures. You'll note the smallest tire (twice the sidewall height plus the diameter of the wheel) is 29.2 inches high.
  5. Landpimp

    Landpimp

    Messages:
    13,138
    Location:
    PNW
    [quote author=RAF link=board=1;threadid=10272;start=msg91763#msg91763 date=1074463479]
    Thanks landpimp. I dont plan to 4-wheel mine either. Those look great, but might keep it from fitting in the garage. How does it handle with the tall tires?
    [/quote]

    handles great. We run the same tires on the other OME's 40 and the stock fj62, super happy with them.
  6. IDave

    IDave

    Messages:
    7,199
    Location:
    McCall, ID
    You will find that steering is easier with shorter tires.
  7. Romer

    Romer fatherofdaughterofromer Moderator

    Messages:
    9,469
    Location:
    Centennial, Colorado
    I switched from 31x10.5x15 to 33x9.5x15 BFG's and did not notice any degradation in steering. Thats probably because I went with the narrower tire for that very reason. I like them and do 4 wheel. I don't do the rock crawler like woody and others do. My idea of a fun 4 wheel trip is to go off on trails to find a quiet spot with a view. I then climb a rock and relax while smoking a stogie and a brew (just one). The trails I drive are not dirt roads by any means, but there something I am confident I won't get stuck on going by myself.
  8. IDave

    IDave

    Messages:
    7,199
    Location:
    McCall, ID
    It helps to have power steering with the bigger tires. You notice it most at a standstill turning the wheel on gravel or dirt.
  9. Romer

    Romer fatherofdaughterofromer Moderator

    Messages:
    9,469
    Location:
    Centennial, Colorado
    I don't have power steering and that is the main reason I picked the 9.5's. Besides with Power Steering, the FJ40 doesn't have the same "charm" :)
  10. RAF

    RAF Guest

    [quote author=IDave link=board=1;threadid=10272;start=msg91770#msg91770 date=1074465783]
    Here is a chart from the Landcruiser Owner's manual for 71 (should be same for you) listing a range of tire sizes and recommended inflation pressures. You'll note the smallest tire (twice the sidewall height plus the diameter of the wheel) is 29.2 inches high.
    [/quote]

    IDave,I've got that chart, but I mistakenly took the 7.6 to be tire width not sidewall height. Thanks
    Roger
  11. IDave

    IDave

    Messages:
    7,199
    Location:
    McCall, ID
    Hey, 7.5 inch tires would be great on snow! :D

  12. folsom50

    folsom50

    Messages:
    635
    Location:
    Nowhere Nebraska
    I went with the 33-9.5's and compared to the bald 235-75's it steers like it has ps. As with clearance, I just went out and measured, with a lift (I really don't know how much..PO) I can just get into my garage with a 6' 11" opening, but just barely, less than an inch clearance.

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