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 MANUALSCHEVROLET1980FORWARD CONTROL 5.7L ENG VIN M, AUTOMATIC TRANS, TRANS MFR CD 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESEATON (TWO PC. CASE) LOCKING DIFFERENTIALOVERHAULREASSEMBLYCAM GEAR ASSEMBLY
1980 Chevrolet Forward Control 5.7L Eng VIN M, Automatic Trans, Trans Mfr CD 400/M40
Cam Gear Assembly
1980 Chevrolet Forward Control 5.7L Eng VIN M, Automatic Trans, Trans Mfr CD 400/M40SECTION Cam Gear Assembly
- Place gear on bench with hub end up. Place cam plate on gear so that cam form on plate is against cam form on gear. Install two eared discs on cam plate, one splined disc and one wave spring alternately in that order. Install on gear hub four eared discs and three splined discs alternately, starting and ending with an eared disc.
- Place cam gear in a press with hub end up. Install thrust ring on gear hub with press. Make sure thrust ring is square with hub. Press thrust ring on until it is flush with shoulder. When installing ring, press down on discs to make sure splined disc does not wedge between thrust ring and gear shoulder. When unit is assembled, check for correct disc sequence. Make sure that the first splined disc (large spline) is correctly located on cam plate.
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.