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 MANUALSPONTIAC1997GRAND PRIX GTP, 4D SEDANREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE OVERHAUL & TESTING - 4T65-ETRANSAXLE DISASSEMBLYFRONT DIFFERENTIAL CARRIER END PLAY CHECK
1997 Pontiac Grand Prix GTP, 4D Sedan
Front Differential Carrier End Play Check
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Front Differential Carrier End Play Check
- Ensure thrust washer and bearing are still on front differential carrier. Install case extension seal onto case extension (if removed). Install case extension onto transaxle. Install 2 case extension bolts. DO NOT tighten bolts to specification. Only tighten bolts until case extension is fully seated.
- Position transaxle with case extension facing up. Install Aligning Tool (J-26958) and dial indicator. See Fig 1. Set dial indicator to zero. Use Snap Ring Remover (J-28585) or large screwdriver to lift front differential carrier. Pry up on VSS reluctor wheel through sensor hole in case extension.
- Note dial indicator measurement. End play should be .005-.025" (.13-.64 mm). Record measurement for reassembly reference. If dial indicator reading is less than .005" (.13 mm), install next smaller size thrust washer, then recheck. If dial indicator reading is more than .025" (.64 mm), install next larger size thrust washer, then recheck. For available thrust washer sizes, see CARRIER-TO-CASE SELECTIVE THRUST WASHER SIZES table under TRANSAXLE REASSEMBLY.
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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.