1988 Chevrolet Hi-Cube 5.7 M, 475/M40FACTORY OEM SERVICE PROCEDURE

Model Identification

BODY CODE IDENTIFICATION CHART

GM Body Code/Series Applicable Models
"C/K" Series (New Aero-Style) (1)
Chevrolet Pickup
GMC Pickup
"M" Series Mini-Vans
Chevrolet Astro
GMC Safari
"G" Series Vans
Chevrolet Van
GMC Van
"P" Series Vans
Chevrolet Parcel Van
GMC Parcel Van
"R/V" Series (Older Style) (2)
Chevrolet Blazer, Pickup, Suburban
GMC Jimmy, Pickup, Suburban
"S/T" Series (3)
Chevrolet S/T Blazer, S10 Pickup
GMC S/T Jimmy, S15 Pickup
(1) "C" Series is the 2WD version and "K" Series is the 4WD version.
(2) "R" Series is the 2WD version and "V" Series is the 4WD version. The "R/V" series was formerly called the C/K" series prior to the release of the redesigned downsized and more aerodynamic) new "C/K" series.
(3) "S" Series is the 2WD version and "T" Series is the 4WD version.
Factory Service Tools

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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.

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