Wilwood Spec-37 HD 48 Curved Vane Rotor - LH - 11.75" Diameter - 1.25" Width - 8 x 7.00" Bolt Circle BR20065 true gasket sealing and fully

true gasket sealing and fully adjustable (emulsion bleeds

1/8" NPT Female to M10x1

Includes screw-in 1/8" NPT hose fitting for expansion tanks

These springs also fit some 1967-1972 GMC C15 trucks

Wilwood Spec-37 HD 48 Curved Vane Rotor - LH - 11.75" Diameter - 1.25" Width - 8 x 7.00" Bolt Circle BR20065 true gasket sealing and fullyWilwood's HD 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