Hub No: 270-12304

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Hub - Hat Mount
Prod #: 270-12304
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Hub - Hat Mount - Product Description

Forged Billet Hat Mount Hubs are made from premium grade alloy billets are forged into shape under high heat and pressure, then CNC machined for precise fit on each spindle application. Intended for use with used with aluminum mounting hats, this specific hub is double drilled on a 5 x 4.50" / 5 x 4.75" wheel lug pattern. Hubs include bearing races and screw-on aluminum caps.


Material & Finish
Material Aluminum
Finish Bare
Weight (lbs) 3.4
UPC Number
UPC 889545068580
Rotor Compatibility
Rotor Mount Bolt Circle (in)
Rotor Offset Type
Rotor Offset Dimension (in)
Mount Type & Dimensions
Mount Type Hat
Adapter Bolt Circle(s) 6-Bolt Type
8-Bolt Type
Hub Bolt Circles
Bolt Circle 1 (in) 5 x 4.50
Bolt Circle 2 (in) 5 x 4.75
Bolt Circle 3 (in)
Hub Stud Diameters
Stud Dia 1 (in) 1/2-20
Stud Dia 2 (in) 1/2-20
Stud Dia 3 (in)

Hub Characteristics

  • 80-87 GM G-Body
  • Hub contains 3 qty 1/4-20 holes for hat retention. Use bolt kit 230-7032.


  • Hub Dimensions

    Hub - Hat Mount Drawing Hub - Hat Mount Drawing Zoom Image
    Hub Dimensions (in)
    Dim A Dim N 1.370
    Dim D 2.495 Dim P 3.010
    Dim H 2.000 Dim Q 0.250
    Dim M 3.150

    Product Documents

    Product Line Sheet
    Product Sheet
    Dimensions Sheet

    Parts & Accessories

    6 Bolt Adapter:
    8 Bolt Adapter
    Inner Bearing 370-0879
    Inner Bearing Set - BCA#: A6
    Outer Bearing 370-0933
    Outer Bearing Set - BCA#: A34
    Inner Hub Bearing - Race 370-0878
    Outer Hub Bearing - Race 370-0881

     
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    Version: 3.05 June 23, 2023