The Wilwood 160-9772 is a drilled and scalloped steel brake rotor measuring 11.75 inches in diameter and 0.35 inch in width, with an 8 x 7.00 inch bolt pattern. It belongs to Wilwood's steel rotor line, which the manufacturer describes as using a special alloy and proprietary manufacturing processes. The manufacturer says these are meant to resist thermal distortion while giving steady friction and wear behavior against brake pads. Compared with a stock iron rotor, this steel build is aimed at buyers who want a lighter, racing-oriented replacement with a drilled and scalloped face for heat management. Confirm the fit and the intended use with the manufacturer before ordering.
This rotor suits owners searching for an 11.75 x 0.35 drilled steel scalloped rotor, an 8 on 7.00 bolt pattern brake rotor, or a Wilwood 160-9772 replacement. The manufacturer lists a 6.38 inch lug inner diameter and does not list this part as pre-bedded, so plan on a proper pad bedding procedure after installation. Because hub and hat dimensions vary between chassis, check that your hub matches the 8 x 7.00 bolt circle and the listed inner diameter before mounting. Owners on user forums often compare rotor width and bolt pattern against caliper bracket clearance, so measure before purchase.
The manufacturer lists this rotor as not bedded, so the brake pads will need to be bedded in following the pad maker's procedure after installation.
The manufacturer specifies an 8 x 7.00 inch bolt circle with an 11.75 inch diameter and 0.35 inch width. Confirm that your hub matches this pattern before ordering.
