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 MANUALSCHEVROLET1983SPORTVAN G10, 5.7 LREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL - THM 400TRANSMISSION DISASSEMBLYFRONT UNIT END PLAY CHECK
1983 Chevrolet Sportvan G10, 5.7 L
Front Unit End Play Check
1983 Chevrolet Sportvan G10, 5.7 LSECTION Front Unit End Play Check
- With transmission removed, remove one oil pump attaching bolt and washer at 10 o'clock position. Install Slide Hammer Bolt (J-6125) into bolt hole. Mount Dial Indicator (J-8001) on bolt.
- Press turbine shaft to rear and output shaft forward to eliminate slack. Set indicator tip to register with end of turbine shaft. Zero dial indicator. Pull out on turbine shaft and note measurement. End play should be .003-.024" (.08-.61 mm).
- If end play is not within specification, select correct thrust washer for use at reassembly. Thrust washer controlling end play is located between pump cover and forward clutch housing. See FRONT UNIT THRUST WASHERS .
FRONT UNIT THRUST WASHERS
| Washer Thickness | I.D. Number | (1) Color Code | ||
|---|---|---|---|---|
| .060-.064" | 0 | Yellow | ||
| .071-.075" | 1 | Blue | ||
| .082-.086" | 2 | Red | ||
| .093-.097" | 3 | Brown | ||
| .104-.108" | 4 | Green | ||
| .115-.119" | 5 | Black | ||
| .126-.130" | 6 | Purple | ||
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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:
- • 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.