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You asked for it and here it is, the KORE3 billet hub kit for GMPU C10/G10 spindle applications with 5x5x3.06 wheel patterns and SET6 (1.25") inner wheel bearings. These hubs are the same as used with the 1991-1996 B-body applications, and are a clean, strong, lightweight solution for anybody wanting to run slip-on rotors on their GMPU application with the SET6 inner wheel bearing and 1" thick factory brake rotor. These hubs are designed to complement KORE3 C5/C6 Corvette based big-brake kits.

KORE3 Hub Assembly KORE3 GMPU Hub Assembly
KORE3 HD Hub Solid Model

  1. Requires the use of modified C5/C6 rotors to properly mate with the 5 x 5" wheel pattern and Ø3.06" [77.8mm] pilot register. Click LH or RH for respective rotors.

  2. KORE3 billet hubs decrease track width .03" [.8 mm] per side over stock applications when used with C5/C6 components, making the overall track width .06" [1.6 mm] narrower than stock.

  3. Compatible with 1971-1987 GMPU spindles that used Ø1.250" (SET6) inner and Ø.844" (SET3/SET34) outer wheel bearings. KORE3 hubs are not compatible with HD GMPU spindle applications that used the larger SET5 (1.375") inner wheel bearings and had the thicker 1.25" rotors.

The following items are included in this kit:

  • Installation instructions

  • (2) KORE3 Billet Hubs
    • CNC machined
    • 6061-T6511 billet aluminum
    • Dual 5 x 5" wheel patterns
    • Black anodized finish
    • 3.05 lb [1.38 kg] each

  • (1) Hardware kit
    • (10) M12x1.5 ARP Press-In Wheel Studs
    • (2) SET6 Inner Wheel Bearings
    • (2) SET3 Outer Wheel Bearings
    • (2) Inner Oil Seals
    • (2) Billet Aluminum Grease Caps
    • (10) 1/2-20" ARP Screw-In Wheel Studs (Optional)

Price: $529.00
KORE3 News:

Notice: All OE GM Corvette calipers (C6, C6 Z51 and C6 Z06) are no longer in production and limited to either stock on hand, NOS, or used/remanufactured options. We currently have reproduction C6 and C6 Z51 2-piston front and 1-piston rear calipers 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:

July 7th

August 18th

September 4th & 8th

October 13th

KORE3 and our suppliers are experiencing unprecedented challenges with respect to supply chain issues combined with high levels of demand, so your patience and understanding is always much appreciated. We will continue to strive to provide premium level products and service noting that delivery estimates are just that, estimates.