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225/75r15 Tires On Stock Rims

Discussion in 'Early CJ5 and CJ6 Tech' started by kenb, May 2, 2021.

  1. May 2, 2021
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
    Joined:
    Jan 22, 2019
    Messages:
    557
    Hello,
    I'm sure I'm going to get yelled at for not trying the search function but I tired to no avail.
    Does anyone have photos of a CJ5 with 225/75r15 tires? I'm looking at a set of Toyo Open Country AT in either 225/75 or 235/75 on stock 15x4.5" rims. I'm leaning towards the 225 to try and keep it narrower but I don't know if that would be a too small tire overall. Tire calculator says the difference in diameter is about 3/4" but I don't know what that looks like in real life.
    The Jeep in question has a 225 with 3.73 gears so I don't think top end speed would be an issue. It's stock height.
    Thanks,
    Ken
     
    Beach66Bum likes this.
  2. May 2, 2021
    jwmckenzie

    jwmckenzie Sponsor

    Boston, MA
    Joined:
    Mar 16, 2012
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    558
    I am running 235/75 - 15's on my CJ6. Here is a pic from the side. Stock height, don't remember the width of the wheel.

    [​IMG]

    I also have a 225 but 4.11 gears. It's a snappy little jeep.
     
    Beach66Bum likes this.
  3. May 2, 2021
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
    Joined:
    Jan 22, 2019
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    557
    Thanks for the photo, looks great! Is your steering limited by tires hitting the springs?
     
  4. May 2, 2021
    jwmckenzie

    jwmckenzie Sponsor

    Boston, MA
    Joined:
    Mar 16, 2012
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    558
    A little bit, I had to adjust the stops, but really doesn't effect how I use the Jeep. It's a street Jeep at this point in it's life. The 225's would be narrower.
     
  5. May 2, 2021
    Keys5a

    Keys5a Sponsor

    Florida Keys
    Joined:
    Jan 23, 2014
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    3,623
    235/75-15 tires are a conservative choice for a CJ5, kind of my base-line for a stock looking Jeep. The 235/75-15 is the same size as an L or LR/78-15 in the old tire size. The 225/75-15 is same as an H/78-15 which was the stock tire size of mid-late '60s CJs.
    Either of these tire sizes work well on either 5 1/2" or 6" stock rims.
    -Donny
     
  6. May 2, 2021
    Beach66Bum

    Beach66Bum 1966 Tuxedo Park Mark IV 2021 Sponsor 2020 Sponsor

    Big Island on...
    Joined:
    Oct 30, 2015
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    1,361
    Here’s a few pics of my 1966 cj5a with stock 15” steel rims (has the Tux full hubcaps) and Toyo M-55’s. The tire size is 235 7515. No issues for ride, performance or steering. Like Donny mentions, this tire size is perfect to retain the stock look and handling as the original Jeep was set up.
     
    Last edited: May 2, 2021
    Ol Fogie likes this.
  7. May 2, 2021
    duffer

    duffer Rodent Power

    Bozeman, MT
    Joined:
    Sep 17, 2009
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    3,650
    I ran 235/75-15's on my 3B for a couple of decades. As JW, I had to adjust the stops a little to keep them off the springs and frame.
     
  8. May 2, 2021
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    Oct 10, 2015
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    1,817
    My stops appear to be spot welded. Is that normal?
     
  9. May 2, 2021
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
    Joined:
    Jan 22, 2019
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    557
    Pretty typical. Mine were welded fairly solidly. I ended up cutting the welds and getting new bolts.
     
  10. May 4, 2021
    Tom in RI

    Tom in RI Member

    Rhode Island
    Joined:
    Aug 1, 2008
    Messages:
    231
    I run 225-75-15 on stock wheels on my ‘66. No steering rub with all stock suspension. If you have to change the steering stops they often have only one spot weld blob holding the stop nut to the axle housing. If you can find that weld it grinds off quickly so you can change or reset the bolt.
     
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