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 MANUALSGMC1988VALUE VAN P3500, 5.7 K, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL7.4L V8 - VINS [N,W]ENGINE SPECIFICATIONSBEARING SPECIFICATIONS
1988 GMC Value Van P3500, 5.7 K, Automatic, 400/M40
Bearing Specifications
1988 GMC Value Van P3500, 5.7 K, Automatic, 400/M40SECTION Bearing Specifications
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS SPECS
| Application | In. (mm) | ||
|---|---|---|---|
| No. 1-4 | |||
| Main Bearings | |||
| Journal Diameter | 2.7481-2.7490 (69.801-69.823) | ||
| Clearance | .0013-.0025 (.033-.064) | ||
| Thrust Bearing | No. 5 | ||
| Crankshaft End Play | .006-.010 (.15-25) | ||
| Connecting Rod Bearings | |||
| Journal Diameter | 2.1990-2.200 (55.85-55.88) | ||
| Clearance | .0009-.0025 (.023-.064) | ||
| Side Play | .013-.023 (.33-.584) | ||
| No. 5 | |||
| Main Bearings | |||
| Journal Diameter | 2.7481-2.7490 (69.801-69.824) | ||
| Clearance | .0024-.0040 (.061-.102) | ||
| Thrust Bearing | No. 5 | ||
| Crankshaft End Play | .006-.010 (.15-25) | ||
| Connecting Rod Bearings | |||
| Journal Diameter | 2.1990-2.200 (55.85-55.88) | ||
| Clearance | .0009-.0025 (.023-.064) | ||
| Side Play | .013-.023 (.33-.584) | ||
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.