Brake Rotors & Bearings

Info
Wilwood’s OEM Replacement Racing Rotors for Modifieds: Wilwood Engineering is proud to introduce our OEM-Replacement line of racing rotors to the industry. These rotors were designed utilizing the latest developments in iron formulation technology using our proprietary blend ferrous alloy to bring you the strongest, lightweight, most dependable rotor available in the market place. The rotors are new castings, not reworked parts and our tolerances are held to the high standards you have come to expect from Wilwood Engineering. GM Metric type rotors come standard with races and 5/8” coarse wheel studs installed in the 5 on 5 bolt pattern. Standard rotors come with 2.14" long studs. LS rotors come with an increased length, 3.14" long wheel stud to simplify wheel spacing. The GM Metric rotor is 10.50” diameter by 1.00” thick and fits the 1979-1988 GM spindles with OE 10.50" rotors.

Strong, lightweight, iron brake rotors
GM Metric rotor, 10-1/2" diameter by 1" thick
Fits 1979-88 GM Spindiles with OE 10-1/2" rotors
Features 3.14" long studs for adding popular wheel spacers
Wilwood bearing & hardware kits for GM Metric rotor is available under part no. 8353709537. Bearing kits include: inner bearing, outer bearing, dust cap, spindle nut, washer, cotter pin, and seal.

Rotor Diameter: 10.15
Rotor Thickness: 0.81"
Rotor Shape: Round
Rotor Construction: Vented
Drilled: No
Slotted: No
Inside Diameter: 6.93"
Bolt Pattern: 5 on 5"
Stud Diameter: 0.63"
Material Type: Cast Iron
Finish: Natural
Weight: 14.50 lbs.
Sold in Quantity: Each
Rotor Width: 0.81"
Vane Count: 32 V
Bedded: No
Wheel Bolt Circle: 5 x 5.00
Rotor Style: Plain Face
Balanced: No
Position: Front

Info
New castings
Exact tolerances
Come standard with races and 5/8” coarse wheel studs installed
5 on 5” bolt pattern
Ford Hybrid version is 10.15” diameter by .810” thick rotor that fits the 1974-1980 Pinto spindles
long studs

OE style Lock nut, bearing and seal kit for popular Pinto / Granada style rotors, used in Modified Racing.

OE style Lock nut, bearing and seal kit for popular GM Metric rotors, used in Modified Racing.

Wilwood ULHD-16 Curved Vane Spec-37 rotors are engineered to withstand extreme temperatures with the highest degree of resistance against distortion, warping, cracking, and wear. This rotor is manufactured from proprietary iron alloy that was derived from the extreme duty military spec rotors Wilwood manufactured. Every Spec-37 rotor is precision machined to less than .001" run-out, flatness, and parallelism. The HP series preparation includes full detail machining and smooth pad contact faces without slots.

11.75" diameter
0.99" width
Rotor type: HD
Style: Plain face
Spec-37 Iron
Vane count: 16 CV
Weight: 7.1
Mount: left hand
Rotor bolt circle: 8 x 7.00"
Rotor mount hole size: 0.326"
Lug ID/Registration: 6.38"
Far side inside diameter: 8.46"
Sold each
Using these rear rotors is a great way to decrease rotation weight and eliminate the use of break pad spacers.

Wilwood ULHD-16 Curved Vane Spec-37 rotors are engineered to withstand extreme temperatures with the highest degree of resistance against distortion, warping, cracking, and wear. This rotor is manufactured from proprietary iron alloy that was derived from the extreme duty military spec rotors Wilwood manufactured. Every Spec-37 rotor is precision machined to less than .001" run-out, flatness, and parallelism. The HP series preparation includes full detail machining and smooth pad contact faces without slots.

11.75" diameter
0.99" width
Rotor type: HD
Style: Plain face
Spec-37 Iron
Vane count: 16 CV
Weight: 7.1
Mount: right hand
Rotor bolt circle: 8 x 7.00"
Rotor mount hole size: 0.326"
Lug ID/Registration: 6.38"
Far side inside diameter: 8.46"
Sold each

Info
Every Wilwood brake rotor is cast from premium grade, long grain carbon iron. This material exhibits long wear, high thermal stability, and excellent resistance to distortion in high heat. Modern foundry and machining techniques hold close tolerances on face and vane thickness. Combining the correct face thickness with a 32 vane casting provides superior heat management and long service life with low rotating and unsprung weight. The straight vane design also makes it possible to use the same rotor on left or right hand mounting locations.
Item Details
8 on 7.00" Thru
8.00 lbs.
Notes
Proper Break-In Procedure for Steel or Cast Iron Rotors

New steel/iron rotors should be bedded in before being used in racing conditions. Proper bedding will prepare the rotor surface, prolong the rotor's life, and make it more resistant to thermal checking or cracking under severe braking conditions. The following procedures should be performed when bedding in both steel and cast iron rotors. It is best to bed in a new rotor using a used set of pads, preferably ones which will not create heat rapidly. Generating heat too rapidly will thermal shock the rotors. Likewise, when bedding in a new set of brake pads it is best to perform the process on a used rotor. This new/used bedding process permits controlled bedding of each individual component.

Make sure rotor surfaces are free from oils, grease, and brake fluid. Run vehicle up to a moderate speed and make several medium deceleration stops to heat up the rotor slowly. This will help reduce the chance of thermal shock caused by uneven heating of the rotor. Pull into the pits and allow the rotor to cool to ambient air temperature. Care should be taken not to ride the brakes into the pits as this may hot spot the rotor causing premature wear to the surface or structural damage.

Specs
Thickness: .81"
Outside diameter: 11.75"
Bolt Circle: 7.00"
Thread: Thru
Weight: 8.0 lbs
32 Vanes

Diameter Big End: 1.25"
Diameter Small End: .87"
Compressed Length: 1.81"
Material Type: Steel
Finish: Natural
Sold in Quantity: Each
Info
Designed to fit '79-up GM Metric spindles
Allows your front hubs to be tight with minimal drag and side pre-load
Easy adjust threaded sleeve and set screw ensure you'll never worry about an over-tightened front hub again
Sold each