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Buying new wheels...

Discussion in 'Chevy Trucks' started by bdover21, Mar 23, 2011.

  1. bdover21

    bdover21 Member
    from Iowa
    Messages: 31

    Found a great deal on some Moto Metal 951's. Now the thing is, I don't understand this whole offset crap and backspacing nonsense. The guy says they're a -12 offset with a 4.5 inch backspace with a bolt pattern of 8 on 6.5. How will these be different than stock? Stick on further? Even fit? Thanks for the help and sorry for the dumb question!
  2. Joe D

    Joe D Senior Member
    Messages: 605

    The back spacing is just what it sounds like. Place the wheel face down and measure from the back of the mounting surface to the back edge of the rim, 4.5inches in your case
    The offset tells you if the wheel mounting surface is in the center of the wheel or is it towards the outer edge which makes it positive, or is it towards the inner edge which would make it negitive.
    So your wheel is question is 12mm towards the inner edge of the wheel with 4.5in back spacing