Wilwood's HD 48 Curved Vane Spec-37 rotors are 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 machined to less than .001" run-out, flatness, and parallelism. Our HD Series preparation includes full detail machining and smooth pad contact faces without slots.
Shipping to US and Internationally, exclusive of any export restrictions. For Special Order items, or In stock marked "Contact Us", expect extended wait times. If your special order is urgent please contact us before ordering to get an Estimated Time (Subject to Manufacturer delays outside of Belfast control).
Contact us with any issues prior to returning any product. an RMA authorization must be made before returns can be accepted.