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required offset and backspacing on 3in lift

Discussion in 'Wheels & Tires' started by jmb1985, Sep 25, 2009.

  1. Sep 25, 2009 at 8:00 AM
    #1
    jmb1985

    jmb1985 [OP] Active Member

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    :Dordering new wheels and tires next week (just ordered my new ome 3inch coil and aal lift). want to find out what offset and backspacing i need. I know i need some offset due to the brake caliper. any help would be appreciated
     
  2. Sep 25, 2009 at 8:04 AM
    #2
    nad

    nad mmmm tacos!

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    you wont need any backspace or offset with stock tires, do you plan on getting larger tires? and the only things your going to rub on is the frame/wheel well/ and uca
     
  3. Sep 25, 2009 at 8:04 AM
    #3
    jmb1985

    jmb1985 [OP] Active Member

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    let me add im looking at the moto metal 951s 17x9 with 12mm offset and 4.53 backspacing. will these rims accomodate 285 70 17s so there is no rubbing
     
  4. Sep 25, 2009 at 8:05 AM
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    nad

    nad mmmm tacos!

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    with 9 inch rims you will have to cut the wheel well and possibly have to pinch weld the frame. I would suggest 17x8
     
  5. Sep 25, 2009 at 11:17 AM
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    RelentlessFab

    RelentlessFab Tacoma offroad armor fabricating beast Vendor

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    Had tons on the old Taco's.... new Tundra is pretty stock
    Sorry, but that isnt true. Its all about the Offset that the wheels have. You want as close to 0 offset as possible. Im running 17x9's with 5"BS and 0 offset(Raceline wheels lists these to be 'toyota specific' wheels) and have a BUNCH of clearance with my 32's, so much in fact that im considering a 295/70/17 when I get new tires. The -12mm offset sticks the tire/wheel 1/2" farther out and can give some rubbing issues on the mudflaps, fender, and front body mount. The 0 offset is a bit better and will help the rubbing issue while still giving adequate clearance to the UCAs.:cool:
     
  6. Sep 25, 2009 at 11:18 AM
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    nad

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    i was assuming that he was talking about a -12 offset and when I said frame I meant body mounts
     
  7. Sep 25, 2009 at 11:19 AM
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    nad

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    or what ever the pinch weld mod is
     
  8. Sep 25, 2009 at 3:14 PM
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    azTRD

    azTRD Well-Known Member

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    There is no way I would even think about running 295/70/17 unless the cab mounts were cut. I currently have 285/70/17 on my 17x9 Enduro's which have 5" BS 0 offset and they do rub the cab mount when flexed. They require the front mud flaps to be removed and the fender trimmed... no way around it.
     
  9. Sep 25, 2009 at 3:25 PM
    #9
    jgreen205

    jgreen205 Member

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    I have 17x9 Motometal with -12 offset. They will stick slightly outside fender. I had to remove mudflap. My tires are 265R70/17. I don't think I have any rubbing. If I did it over, I would definitely go with a positive offset. Stock offset is +30.
     
  10. Sep 26, 2009 at 1:55 PM
    #10
    jmb1985

    jmb1985 [OP] Active Member

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    im trying to do this with little to no modification to the fenders... im trying to run close to a 33inch tire. any ideas?
     
  11. Sep 26, 2009 at 2:04 PM
    #11
    jmb1985

    jmb1985 [OP] Active Member

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    ive thought about stepping down to a 16x8
     
  12. Sep 26, 2009 at 6:32 PM
    #12
    RelentlessFab

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    Had tons on the old Taco's.... new Tundra is pretty stock
    The overall diameter of the wheel isnt really what matters. What does is the offset. Basically, you just want the wheel to stick out as little as possible to allow clearance between the tire and knuckle/UCA. As long as that has clearance, you should be good. Once again, a slightly positive to a 0 offset is best and a negative offset will usually stick the wheel out too far(unless its something like a 17x8 w/ -12 offset, which would stick out the same as a 17x9 with 0 offset). A little confusing, but you'll get it eventually. Feel free to PM me if you have any further questions you'd like help with.
     
  13. Sep 27, 2009 at 8:57 PM
    #13
    BIGDEZUL

    BIGDEZUL Well-Known Member

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    So a 18x9 with a -12 offset and a BS of 4.5" would rub on a 3" lift
     
  14. Sep 28, 2009 at 1:06 AM
    #14
    RelentlessFab

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    Had tons on the old Taco's.... new Tundra is pretty stock
    with a 33, probably.
     
  15. Sep 28, 2009 at 7:09 AM
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    BIGDEZUL

    BIGDEZUL Well-Known Member

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    guessing i should stick to a 17"
     
  16. Sep 28, 2009 at 10:50 AM
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    RelentlessFab

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    Had tons on the old Taco's.... new Tundra is pretty stock
    Once again, wheel diameter doesnt matter at all. A 16x8 w/4.5" BS and 33's will fit just the same as a 17x9 with 5" BS with a comparable 33. What does is simply the offset of the chosen wheel, and to some extent, the width of the wheel.
     
  17. Sep 28, 2009 at 10:53 AM
    #17
    BIGDEZUL

    BIGDEZUL Well-Known Member

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    Ok I see....I've decided on a 17" thanks for the help:)
     
  18. Sep 29, 2009 at 7:57 PM
    #18
    BIGDEZUL

    BIGDEZUL Well-Known Member

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    ok relentless, i double checked and the 18" 4.5 BS and 10 offset....is a 18x8.5 not a 18x9 like i thought. so the extra .5" would help with rubbing issues??? looking at duratrac 275/65/r18 which says they are 11.8" wide or 275/70/18 and 11" even. I like the look of a bigger rim vs a lot of side wall....thanks for any help
     
  19. Sep 29, 2009 at 8:49 PM
    #19
    RelentlessFab

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    Had tons on the old Taco's.... new Tundra is pretty stock
    +10 offset, or -10 offset? Im guessing +10 by the other dimensions? Also, it seems strange to me that the tires are both 275's(which is the width in millimeters) yet have a different advertised width.
     
  20. Sep 29, 2009 at 8:52 PM
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    BIGDEZUL

    BIGDEZUL Well-Known Member

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    to give u a better idea, (ION alloy 136 black) is what i want ....dont flame pleaze..

    my bad bro, typing on ambien is not easy 295's were 11.8"
     
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