Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1987J2000/SUNBIRD L4-121 2.0LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSBRAKES - ON-CAR ROTOR TURNING TOOL
1987 Pontiac J2000/Sunbird L4-121 2.0L
Brakes - On-Car Rotor Turning Tool
1987 Pontiac J2000/Sunbird L4-121 2.0LSECTION Brakes - On-Car Rotor Turning Tool
89pontiac03
Bulletin Number: 89-SM-5
Reference Number: 975001
Publish Date: 1/89
Subject: ON-CAR BRAKE ROTOR TURNING TOOL ALL 1980 - 1989 MODELS EQUIPPED WITH DISC BRAKES
A new tool for on-car turning of brake rotors is now available through General Motors Dealer Equipment. The tool number is 38 70400S10.
This tool is designed to compensate for tolerance stack-ups from hubs, bearings, spindles, etc., by finishing the rotor while it rotates in it's normal on-car position.
We believe this source and their equipment to be reliable. There may be additional manufactures of such equipment, however, General Motors does not endorse, indicate any preference for or assume any responsibility for the products or equipment from these firms or for any such items which may be available from other sources.
Bulletin Number: 89-SM-5
Reference Number: 975001
Publish Date: 1/89
Subject: ON-CAR BRAKE ROTOR TURNING TOOL ALL 1980 - 1989 MODELS EQUIPPED WITH DISC BRAKES
A new tool for on-car turning of brake rotors is now available through General Motors Dealer Equipment. The tool number is 38 70400S10.
This tool is designed to compensate for tolerance stack-ups from hubs, bearings, spindles, etc., by finishing the rotor while it rotates in it's normal on-car position.
We believe this source and their equipment to be reliable. There may be additional manufactures of such equipment, however, General Motors does not endorse, indicate any preference for or assume any responsibility for the products or equipment from these firms or for any such items which may be available from other sources.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.