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 MANUALSCHEVROLET1983STEP VAN P30, 4.8 T, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISSTEERINGSTEERING COLUMNADJUSTMENTSSHIFTER TUBE ADJUSTMENT"G" & "P" MODELS (AUTOMATIC TRANSMISSIONS)
1983 Chevrolet Step Van P30, 4.8 T, Automatic, 400/M40
"G" & "P" Models (Automatic Transmissions)
1983 Chevrolet Step Van P30, 4.8 T, Automatic, 400/M40SECTION "G" & "P" Models (Automatic Transmissions)
Place shift tube lever in "N" or "D". Loosen adjusting ring clamp screws and rotate adjusting ring to obtain .33-.36" (8.4-9.1 mm) end play between shift tube lever and adjusting ring. Tighten adjusting ring clamp screws. See Fig 1 .
Fig 1: Adjusting Shift for Automatic Trans. ("G" & "P" Models) Rotate adjusting ring to give clearance.
ADJUSTMENT SPECIFICATIONS
| Application | INCHES (mm) | |
|---|---|---|
| Lower Bearing Adjustment | ||
| "G" Models | .46-.54 (12-13) | |
| "P" Models | 1.24-1.28 (31.5-32.5) | |
| Shift Tube Adjustment | ||
| Automatic Transmission | .33-.36 (8.4-9.1) | |
| Manual Transmission | .005 (.13) | |
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.