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Back spacing on factory SR5 and TRD Off Road wheels?

Discussion in '3rd Gen. Tacomas (2016+)' started by TPayneNFA, Dec 18, 2016.

  1. Dec 18, 2016 at 1:27 PM
    #1
    TPayneNFA

    TPayneNFA [OP] @prerunner_overland

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    7" Maxtrac Lift Fab Fours Bumper Icon Alloys Alpha in Gun Metal 315/70R17 Hankook Dynapro MT TRD LED DRL Headlights 5.29 Gears
    Does anyone know what the back spacing is on the 16" aluminum SR5 wheels and the 16" TRD off road wheels? I have the SR5 wheels currently, but like the look of the TRD OR wheels better. I want to know the back spacing of each, because I plan to buy a set of the 4" lift spindles, and wanted to know if I would need to run wheel spacers, and / or what size of wheel spacer. I'm wanting to run the thinnest spacers possible, just enough to keep them from toughing the spindles, but also to hopefully keep my wheels from sticking out past the fender flares.
     
  2. Dec 18, 2016 at 2:52 PM
    #2
    splitbolt

    splitbolt Well-Known Member

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    Both have a 5" backspace.

    Untitled_zpsu8tzbxjq_16a5fa8c241bbd4ef75c3520f0c06c19413780db.jpg
     
  3. Dec 18, 2016 at 8:50 PM
    #3
    TPayneNFA

    TPayneNFA [OP] @prerunner_overland

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    @splitbolt thanks for the data, but I do not see the figure for the 5" back spacing. Can you explain how you determined that from the information provided in the table?
     
  4. Dec 18, 2016 at 9:07 PM
    #4
    splitbolt

    splitbolt Well-Known Member

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    7" is only the (inner)rim width...
    8" would be the actual (outer)wheel width.
    You have to account for the thickness of the wheel flanges when figuring backspace... usually, 2 x .5"=1"
    So...
    8" w/ 0 offset would be 4" BS
    ...add 25mm positive offset; 5" BS.
     
    Last edited: Dec 18, 2016
    TPayneNFA [OP] likes this.
  5. Dec 18, 2016 at 9:18 PM
    #5
    TPayneNFA

    TPayneNFA [OP] @prerunner_overland

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    7" Maxtrac Lift Fab Fours Bumper Icon Alloys Alpha in Gun Metal 315/70R17 Hankook Dynapro MT TRD LED DRL Headlights 5.29 Gears
    Thanks for explaining it! Now those figures make sense. Learn something new everyday lol
     
  6. Dec 19, 2016 at 6:17 AM
    #6
    Texas Duck

    Texas Duck Active Member

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