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 MANUALSPONTIAC1987FIREBIRD FORMULA, 5.0 H, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONMANUAL TRANSOVERHAUL - GM 77 MM 5-SPEEDCOMPONENT DISASSEMBLY & REASSEMBLYTRANSMISSION COVERDISASSEMBLY
1987 Pontiac Firebird Formula, 5.0 H, Automatic
Transmission Cover: Disassembly
1987 Pontiac Firebird Formula, 5.0 H, AutomaticSECTION Disassembly
- Place selector arm plates and shift rail in Neutral (centered) position. Rotate shift rail until selector arm disengages from selector arm plates and roll pin is accessible.
- Remove selector arm roll pin using a pin punch and hammer. Remove shift rail, shift forks, selector arm plates, selector arm, interlock plate and roll pin.
- Remove shift cover-to-extension housing "O" ring seal. Remove Nylon inserts and selector arm plates from shift forks. Note position of inserts and plates for reassembly reference.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.