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Wheel Backspacing and Offset Info

Discussion in 'Wheels & Tires' started by tcBob, Jul 17, 2010.

Page 4 of 54
  1. Jul 26, 2011 at 12:39 PM
    #61
    NoLimits

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    I didn't really mean a 265/70 maybe like a 235 or 245/60 on 15x8" wheels. My question was about the BACKSPACING. I'm just looking for an alternative to lifting and putting 31s on there.

    I just want a reasonable wide look while still relatively keeping my gear ratio. (My buddies taco is 7 mph off at 65mph!) So my question is with a 8" wide rim will the 2.5" backspacing be too much or will the 3.75" be just fine.

    The stock 5 lug steelies have a very high positive offset, its practically right at the outside of the wheel. That along with the skinny 215s make the truck look kinda weak.

    Thanks guys
     
    NoLimits, Jul 26, 2011
    #61
    Geronimoj likes this.
  2. Jul 26, 2011 at 2:33 PM
    #62
    TexasTacoma37

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    TexasTacoma37 Well-Known Member

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    I think stock backspacing on 5-lugs is 3.75, but I'm not positive.

    But if that's the case, then the new 15x8 rims would stick out 2" further than stock, because they have the same backspacing but are 2" wider....
     
    TexasTacoma37, Jul 26, 2011
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  3. Aug 4, 2011 at 11:04 AM
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    TacomaHog

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    TacomaHog Well-Known Member

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    OK so i just learned how to understand tire size kinda. and am now looking into rims with a 4.5 back space but i dont know how to understand the wheel specks. to much to learn
     
    TacomaHog, Aug 4, 2011
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  4. Aug 4, 2011 at 11:06 AM
    #64
    98tacoma27

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    Some stuff. Not a lot, just some.
    What wheel specs?
     
    98tacoma27, Aug 4, 2011
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  5. Aug 4, 2011 at 11:10 AM
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    TacomaHog

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    i pretty much only understand the diameter..... cant figure out the back space
     
    TacomaHog, Aug 4, 2011
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  6. Aug 4, 2011 at 12:14 PM
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    98tacoma27

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    Some stuff. Not a lot, just some.
    Back space is the distance from the mounting point to the back of the rim. In this picture, the wood is on the part of the rim that goes towards the truck.

    [​IMG]
     
    98tacoma27, Aug 4, 2011
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  7. Aug 4, 2011 at 8:05 PM
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    TacomaHog

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    yeah i understand what back space is..... its the numbers on the wheel specs that im looking at on the online stores. 16x8 and other numbers. i dont know how much 40backspace is
     
    TacomaHog, Aug 4, 2011
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  8. Aug 4, 2011 at 8:47 PM
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    TexasTacoma37

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    :confused: You do, or do not know what backspacing is?

    4.0 backspacing means the inner lip of the rim sits 4 inches out from the mounting point of the rim. The 16x8 means the rim is 16" in diameter and 8" in width.
     
    TexasTacoma37, Aug 4, 2011
    #68
  9. Aug 4, 2011 at 8:50 PM
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    TacomaHog

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    TacomaHog Well-Known Member

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    i do know what back spacing is. but i dont know how to read the specs off the wheel store site. what is 40 back space?
     
    TacomaHog, Aug 4, 2011
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  10. Aug 4, 2011 at 8:51 PM
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    TexasTacoma37

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    TexasTacoma37 Well-Known Member

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    Show me a link of what you are talking about.

    40 backspace would mean 40" of backspacing, which is not realistic.
     
    TexasTacoma37, Aug 4, 2011
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  11. Aug 4, 2011 at 8:51 PM
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    TacomaHog

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    ok nvm. i didnt see the second part of your post
    thnx much. i thought the 40 was metric or some shit
     
    TacomaHog, Aug 4, 2011
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  12. Aug 4, 2011 at 8:56 PM
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    TacomaHog

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    TacomaHog, Aug 4, 2011
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  13. Aug 4, 2011 at 8:59 PM
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    TexasTacoma37

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    TexasTacoma37, Aug 4, 2011
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  14. Aug 4, 2011 at 9:00 PM
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    TacomaHog

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    ok gotcha. im new to this stuff. so this would be the proper size rim to get with 285/70/16?
     
    TacomaHog, Aug 4, 2011
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  15. Aug 4, 2011 at 11:20 PM
    #75
    NoLimits

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    Alright I'm about a week away from making this purchase and I still cant seem to find a direct answer for my question.

    I'm buying some procomp 15x8s but I don't know which BS to get. The 3.75" or the 2.5". I'm wanting to run 255/60s because I can get a great deal on them and I think they would look sick but I'm wondering if the 3.75"s will rub or will the 2.5"s stick out too far.

    Thanks
     
    NoLimits, Aug 4, 2011
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  16. Aug 4, 2011 at 11:23 PM
    #76
    TeamSarcasm

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    subbed for later use! thanks for this!
     
    TeamSarcasm, Aug 4, 2011
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  17. Aug 5, 2011 at 4:37 AM
    #77
    TexasTacoma37

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    TexasTacoma37 Well-Known Member

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    Where did you find a tire in that size? Are you sure you odn't mean 285/75/16?

    255/60's are only a 27" tire, and are too wide for a 5-lug on stock suspension anyway. You can go up to 235/75/15 without a lift, which is a 29".

    The 3.75" will be your best bet, that's close to stock backspacing for 5-lugs.
     
    TexasTacoma37, Aug 5, 2011
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  18. Aug 5, 2011 at 6:34 PM
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    NoLimits

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    Hey thanks by the way for your input I don't seem to be getting much of it since this is a more specific subject.

    I'm just leaning towards the 255/60s because its only a 0.7% difference in height so I'd relatively be keeping my gear ratio untouched.

    So when you say their too wide for stock suspension are you talking about the control arms and stuff because that's why I figured getting the right backspacing would help me clear any rub?

    I'm not really worried about being close to the stock backspacing, I'm actually wanting them to stick out a bit but not excessively. That's why I'm torn between the 3.75" and the 2.5".
     
    NoLimits, Aug 5, 2011
    #78
  19. Aug 5, 2011 at 6:41 PM
    #79
    TexasTacoma37

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    Sorry man I really don't know much more about 5 lugs as far as where the rubbing will occur and how to prevent it. I just know the 235 is the max size. Maybe try in the 5 lug forum?
     
    TexasTacoma37, Aug 5, 2011
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  20. Aug 15, 2011 at 10:00 AM
    #80
    Shack

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    Shack Well-Known Member

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    I really hate to do this, but I guess its better than starting another thread. I want to buy xd diesel 18x9 Says it has a 0 offset and a 5 backspace. I am putting on 285 65r18 tires so that should be good. I am mainly concerned with the wheel fitment. Will these work? Once again I apologize for doing this but I just cant figure it out myself and need help.
     
    Shack, Aug 15, 2011
    #80
Page 4 of 54

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