Wilwood GT 48 Curved Vane Rotor - 12.90" Diameter - 12 x 8.75" Bolt Circle (Thru Bolt) - 1.25" Rotor Thickness - LH - 11.7 lbs. H77703F 1975-1978 GMC K15

1975-1978 GMC K15

Vehicle Applications: 1982-1992 GM F-Body Torque Arm Relocation Kit- TH350

1975-1983 Chrysler Cordoba

570" ID that works well with our 951 dual valve springs

and Polished

Wilwood GT 48 Curved Vane Rotor - 12.90" Diameter - 12 x 8.75" Bolt Circle (Thru Bolt) - 1.25" Rotor Thickness - LH - 11.7 lbs. H77703F 1975-1978 GMC K15Wilwood's GT 48 Curved Vane Spec 37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Every Spec 37 rotor is precision