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 MANUALSPONTIAC1987GRAND PRIX BROUGHAM, 5.0 HREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - 200CCOMPONENT DISASSEMBLY & REASSEMBLYOUTPUT SHAFTSPEEDOMETER DRIVE GEAR REPLACEMENT
1987 Pontiac Grand Prix Brougham, 5.0 H
Speedometer Drive Gear Replacement
1987 Pontiac Grand Prix Brougham, 5.0 HSECTION Speedometer Drive Gear Replacement
- If equipped with a nylon gear, depress gear clip and slide drive gear and clip off output shaft. To install, place gear clip with tanged end in correct hole in shaft. Align slot of gear with slip and install gear. See Fig 1 .
- Using Gear Puller (J-8433 and J-21427-01), remove steel gear (if equipped). To install, position front end of shaft on a block of wood to prevent damaging shaft during installation.
- Position gear (large chamfered inside diameter first) over rear end of output shaft. Using driver, drive gear onto shaft until distance from rear end of shaft to rear face of gear is 6 5/32" (156.37 mm).
RENDER: 1.0x
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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.