company name slash logo burger menu for mobile


This KORE3 billet hub kit was designed for GM short-spindle applications, which includes all 1964-1972 GM A-Bodies, 1967-1969 GM F-Bodies, and 1968-1974 GM X-bodies. Please refer to the GM Big-Brake Application Chart for additonal compatability and application specific notes. KORE3 hubs are a clean, strong, lightweight solution for anybody wanting to run slip-on rotors on their GM short-spindle equipped car. Hubs were designed to complement the KORE3 big-brake conversion kits.

  1. Kit is provided with your choice of either ARP M12x1.5 press-in or 1/2-20 screw-in studs and bearing races pressed in as standard. Billet aluminum grease caps come as standard with this hub kit.

  2. KORE3 billet hubs are interchangeable with most GM, OE, short-spindle drum hubs, however the OE drum hubs must be modified in order to be used with the KORE3 big-brake upgrade. The outside diameter of the flange must be machined to Ø5.85" or else it may interfere with the rotor and not seat properly, resulting in a potentially unsafe condition.

  3. KORE3 billet hubs with a C5/C6 rotor in place increase track width .200" [5mm] per side over stock drum applications, making the overall track width .400" [10mm] wider than stock. Track width is decreased .240" [6mm] per side compared to the stock disc applications, making the overall track width .480" [12.2mm] narrower than stock.

The following items are included in this kit:

  • Installation instructions

  • (2) KORE3 Billet Hubs: GM Short-Spindle
    • CNC machined
    • 6061-T6511 billet aluminum
    • Dual 5 x 4-3/4" wheel patterns
    • 3.15 lb [1.43 kg] each
    • Anodized black

  • (1) Hardware kit
    • (2) Inner Wheel Bearings
    • (2) Outer Wheel Bearings
    • (2) Inner Oil Seals
    • (2) Grease Caps
    • (10) 1/2"-20 ARP screw-in wheel Studs
    • OR (10) M12x1.5 ARP press-in wheel Studs
    • (2) Billet Aluminum Grease Caps

Price: $539.00
KORE3 News:

Notice: KORE3 is currently stocking reproduction C6 and C6 Z51 2-piston front and 1-piston rear calipers, they're on hand and ready to ship. Please contact us with any questions.

KORE3 is a proud dealer for Hydratech Braking Systems™, the industry leader in hydraulic brake assist conversions for the pro-touring market. Please plan for approximately 90-120 day deliveries on all hydroboost units until further notice.

Upcoming Closures:

Wed April 10th

Mon May 27th

Thurs July 4th

Mon Sep 2nd

If you call us after business hours, or during a closure, we will return your call as soon as we can upon our return. Please Email us at if you would like a quicker response.