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Looking for a safe backspace.

Discussion in 'Wheels & Tires' started by OhioTaco, Mar 25, 2009.

  1. Mar 25, 2009 at 3:39 PM
    #1
    OhioTaco

    OhioTaco [OP] Let it snow!

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    What is a safe backspace in an after market rim? I have a 06, TRD off-road, AC, w/ 3” lift. I’m looking at 285/75/16 M/T tires on 16x8 rims. Would a 4.5 backspace be my best bet? What about the offset, is that different from the backspace? Should I expect to trim? I’ve looked all over, and had no luck. Any help would be great! :mudding:
     
  2. Mar 29, 2009 at 5:13 PM
    #2
    KeithB

    KeithB Well-Known Member

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    From what I've read, most seem to go with 4.5" bs on aftermarket wheels. Stock is 5.5". for 285's you might still rub a little but nothing a little trimming wont' fix.

    Backspacing is the measurement from mounting surface to the inside of the wheel rim (closet to the engine). So less backspacing pushes the wheel out further. Offset is the measurement from the mounting surface to the centerline of the wheel.
     
  3. Mar 29, 2009 at 5:13 PM
    #3
    Delmarva

    Delmarva Mayor of TW

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    4.5 is safe :thumbsup:
     
  4. Mar 29, 2009 at 7:24 PM
    #4
    SuperD

    SuperD Mall Cruiser Pilot

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    Yep, 4.5" backspace and anything with a negative in offset, ie. -12mm offset, should be good..

    Yes, offset is a different measurment than backspace. Backspace is the amount of space from the rear of the wheel to the wheel mounting surface.

    Offset is where the wheel mounting surface falls in relation to the centerline of the inside of the tire mounting lips.

    This completely confusing explanation was brought to you by the letter R :)
     
  5. Mar 30, 2009 at 12:28 PM
    #5
    OhioTaco

    OhioTaco [OP] Let it snow!

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    Thank you guys, now I’m getting it.
     
  6. Mar 30, 2009 at 12:31 PM
    #6
    longbow

    longbow I see you now..................

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    Here is 285/75-16 on 16x8 wheels, no issues here
    [​IMG]
     
  7. Mar 31, 2009 at 8:00 PM
    #7
    dihilles

    dihilles Member

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    hey longbow could u post more pics of the truck to see what the wheel look like? maybe u can provide the backspacing and size lift you have... id really appreciate it
     
  8. Apr 1, 2009 at 8:28 PM
    #8
    radbowman

    radbowman Member

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    Hey Longbow, those are some sweeet wheels, By the way "Longbow" is the name related to your choice of hunting weapon, or is it just a name?
     
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