Wilwood Front Hat-Mount Hub for CPP Impala Drop Spindles, 5 x 4.50/4.75 Inches

For the specified Classic Performance Products Impala drop spindle, this hub carries an aluminum rotor hat. Three 1/4-20 retention holes distinguish the hat connection from the wheel-stud patterns. Bill Wood’s 1977 founding of Wilwood Engineering began a disc brake design and manufacturing business based in Camarillo, California. The range includes master cylinders, calipers, rotors, brake lines, valves and fittings for motorsport, street-performance and specialized vehicles. Component selection must consider the complete braking arrangement.

Technical Details

• Manufacturer part number: 270-10237
• Finish: Bare
• Wheel mounting pattern(s): 5 x 4.50, 5 x 4.75 inches; separate from rotor or drive-flange attachment
• Wheel-stud thread: 1/2-20
• Rotor mounting arrangement: Hat
• Product-page drawing references (inches): D = 2.495; H = 1.470; M = 3.150; N = 1.970; P = 3.060; Q = 0.280. Use the manufacturer drawing for the reference faces.
• Manufacturer bearing / race references: Inner Bearing: 370-0879; Outer Bearing: 370-0877; Inner Hub Bearing - Race: 370-0878; Outer Hub Bearing - Race: 370-0876. References identify compatible service parts and do not mean all bearings are included.
• Package: One hub; the compatible rotor, rotor adapter or hat and its attachment hardware are selected for the complete conversion
• Hat retention: Three 1/4-20 holes; Wilwood lists bolt kit 230-7032
• Hub closure and races: Manufacturer describes included bearing races and screw-on aluminum cap; confirm the supplied assembly and obtain the compatible bearings separately
• Component: Hub - Hat Mount
• Position in the specified assembly: Front
• Material: Aluminum

Fitment & Compatibility

Check wheel-flange position against the spindle and rotor mounting faces. Hubs for the same vehicle can use different offsets or bearing combinations and should not be substituted on model name alone.

Wilwood component specifications · Manufacturer reference DS719

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