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Thread: Back spacing

  1. #1
    Master Mechanic Burden33's Avatar
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    Default Back spacing

    Ok here is the thing i got my 6'' fabtech lift in my garage my truck is being sent out eithere this summer or next. i'm getting 33" tires and im looking at getting 20" rims for it bvut im not sure what size back spacing i should get.


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  2. #2

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    with a 6 inch lift I think I would run 35's, but thats just me.
    Dan
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  3. #3
    Master Mechanic Burden33's Avatar
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    I want to run 35's but the guys from national four hweel drive said i would have to go from a 3.73 to a 4.10 gear ratio

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    Default

    Can you list some more info about your truck. I tried to research back-spacing for Fabtech but to many variations so I need to know more. Also it would help to know engine size. 6" kits and 35's go together well but if you only have the 5.3 or smaller then you might consider 4.56's as there is not much difference between the 3.73-4.10. Most 6" lifts suggest 4.5" backspacing.
    Darcy
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
    Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.

  5. #5
    Master Mechanic Burden33's Avatar
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    my truck is a 2008 chevy silverado with a 5.3 engine with a 3.73 she is the lt crew cab 4x4
    Last edited by Burden33; 03-24-2009 at 01:57 PM.

  6. #6

    Default

    I'd go with a 35 dont worry about the rear end, not that much of a difference. Depending on the width of the wheels you want and how much you want them to stick outside the feder. 20X10 with like a 0 Offset or 20X9 with a 0 to -16 offset. that will set them out there nicely, any lower and they will come to close to rubbing. Just dont go to negative on the offsets. Most wheels have options for stock heights and lifted vehicles.
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  7. #7

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    Go with 35's you will be much happier. and dont worry about the gears anway the difference between a 3.73 and 4.10 is not very much anyway. and i dont know why they told you 4.10's, a 4.56 would be well more suited for a 35 anyway.
    PETE
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