1979-Up GM Metric Stock Car Disc Brake Rotor, 5 on 5 Inch, DRP

#91605176

1979-Up GM Metric Stock Car Disc Brake Rotor, 5 on 5 Inch, DRP

5 on 5" or 5 on 4 3/4" bolt circle
10.5" diameter x 1" thick durable rotors
82-'87 spindle applications, and must use 912-TS3 outer bearings

$215.99

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Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

5 on 5" or 5 on 4 3/4" bolt circle
10.5" diameter x 1" thick durable rotors
82-'87 spindle applications, and must use 912-TS3 outer bearings
Bearing spacer allows your front hubs to be tight with minimal drag and side pre-load
Bearing Kit for GM #2 Metric Front (Set 3/6); DRP Premium Finished. (1) LM67048, (1) M12649

Comes as a Kit

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Key Specs

Rotor Diameter	10.50 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1"
Bolt Pattern	5 on 5"

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Need To Know

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855.313.9176

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Liquid/Compound Return Policy

For health, safety, and product integrity reasons, only unopened, sealed items are eligible for return or credit.

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Installation Details

Wheel Bearing Spacers Installation Instructions (91031033)

Installation Tips

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.

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Speedway Motors 91605176 Details

Brake Rotor

This 1979-up GM Metric front disc brake rotor will work with a Set # 6 inner bearing/race which fits most spindles. 5 on 5" with 5/8" coarse studs installed. 10.5" diameter x 1". Must be used with 912-TS3 outer bearings for 1982-1987 spindle applications. IMCA Approved.

This is a 1979-1981 Metric GM rotor with the bolt pattern changed to 5 on 5". It can be used on 1982-1987 GM metric spindles if the you use our bearing/seal kit 91031048, or use at least the 1979-1981 style outer bearing 912TS3.

This rotor is designed for dirt track applications and should NOT be used for asphalt racing.

Bearing Spacer

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

Bearings and Seal

Bearing Kit for GM #2 Metric Front (SET3/6); DRP Premium Finished

Includes:

(1) LM67048
(1) M12649
Seal OD: 2.565"
Seal ID: 1.950" (Our sealing elements are full PTFE and "stretch" over the spindle)
Seal Width: 0.255"

Kit Includes

(1) 1979-Up GM Metric Stock Car Disc Brake Rotor, 5 on 5 Inch

(1) DRP 007 10521S 1979-Up GM Metric Spindle Pre-Load Bearing Spacers

(1) DRP 007-10581 Premium Finished GM Metric Front Bearing Kit

(1) DRP Performance Products 007 10577 Ultra Low Drag Hub Seal

(1) DRP 007-10756 Ultra Low Drag Bearing Grease Syringe, 50 Grams

Guides & Documents

Wheel Bearing Spacers Installation Instructions (91031033)

Speedway Motors 91605176 Specifications

KEY SPECS
MFG. Part #	91605176
Brand	Speedway Motors
Rotor Diameter	10.50 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1"
Bolt Pattern	5 on 5"

GENERAL
Position	Front
Rotor Shape	Round
Rotor Type	Vented
Rotor Finish	Plain
Stud Length	2.32"
Stud Diameter	.63"
Thread Pitch	5/8"-11
Weight	18.15 lbs.
Sold in Quantity	Kit
Notes	Designed for dirt track applications.

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