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Box Truck Tire Size....

Discussion in 'Peterbilt Forum' started by COE220, Mar 22, 2015.

  1. Mar 22, 2015 #1
    COE220

    COE220 Bobtail Member

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    Mar 22, 2015
    0
    Hello every one, Im new in the truck business, I own a 07 Peterbilt COE 220 Box Truck, the truck came with tire size 285/70R19.5, but in the door it says I can use 11R22.5, so I bought six rims and tires size 11R22.5, the rear tires fitted ok, but not the front ones, they are too big for the front, my question is can I have this truck running with 4 11R22.5 tires on the back and 2 285/70/R19.5 on the front ? Is it safe and legal? I know the front tires are going to turn more per mile than the rear ones... Thank you very much for your help and happy Sunday....
     
    COE220, Mar 22, 2015
    COE220, Mar 22, 2015
    #1
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  3. Mar 22, 2015 #2
    spyder7723

    spyder7723 Road Train Member

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    Mar 31, 2013
    sarasota, fl
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    Why didn't they fit on the front? They should have bolted right on.
     
    spyder7723, Mar 22, 2015
    spyder7723, Mar 22, 2015
    #2
  4. Mar 22, 2015 #3
    COE220

    COE220 Bobtail Member

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    Mar 22, 2015
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    The tire barely fits when the wheel is straight but if I turn it it will hit the fender, I tried to make it fit but I would not fit. I'm driving the truck with 19.5s on front and 22.5s in the back, is this safe and legal? Thank you....
     
    COE220, Mar 22, 2015
    COE220, Mar 22, 2015
    #3
  5. Mar 22, 2015 #4
    baha

    baha Road Train Member

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    You may have to adj. the headlights and reset the speedo to read the rite MPH
     
    baha, Mar 22, 2015
    baha, Mar 22, 2015
    #4
  7. Mar 22, 2015 #5
    140mower

    140mower Bobtail Member

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    Jan 20, 2015
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    Not sure where you are, but, here in British Columbia it is very common to run 24.5's on the rear and 22.5's on the front, especially in dump trucks. Safety won't be an issue unless you forget to re-torque the wheel nuts after the change over.
     
    140mower, Mar 22, 2015
    140mower, Mar 22, 2015
    #5
  8. Mar 22, 2015 #6
    COE220

    COE220 Bobtail Member

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    Mar 22, 2015
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    I'm in Houston Texas, thank you for your answers
     
    COE220, Mar 22, 2015
    COE220, Mar 22, 2015
    #6
  9. Mar 24, 2015 #7
    04SSHD

    04SSHD Light Load Member

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    Feb 7, 2011
    Henderson, NV
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    The 220 COE truck tire sizes depend on the frame and suspension selected when ordering the truck. It sounds like yours has the lower suspension which would be correct for 19.5 wheels.

    If you want to run 22.5's I would suggest going low pro tires and doing a 255/70/22.5

    [​IMG]
     
    04SSHD, Mar 24, 2015
    04SSHD, Mar 24, 2015
    #7
    KB3MMX Thanks this.
  10. Dec 12, 2018 #9
    Pabrown210

    Pabrown210 Bobtail Member

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    Dec 12, 2018
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    We frequently are asked the same question about Isuzu NPR tires. The problem some trucks have is the turning radius clearance for the larger tires. Many have worked fine and the drivers have stated they have a better ride.

    San Antonio Mobile Tire Service
     
    Pabrown210, Dec 12, 2018
    Pabrown210, Dec 12, 2018
    #9
    KB3MMX Thanks this.
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