This factory service and repair manual for the 1987 GMC P60 was issued for the P6T042, the year's single listed configuration, and no engine displacement is itemized in the record alongside it. The coverage that remains is the coverage that matters most on a working chassis: repair and adjustment procedures, the specifications each one calls for, torque values for reassembly, wiring diagrams for the electrical systems, and diagnostic routines to follow when something reads wrong rather than simply stops.
Trims covered
- P6T042
Known issues on the 1987 P60. The federal record holds nothing against the 1987 P60, since no recalls and no owner complaints have been recorded against it. That absence puts the weight back on maintenance and repair practice, which is exactly what the manual documents: the correct sequence for a job, the specification to measure against, the torque value to finish on, and the wiring diagram and diagnostic steps to work from when a circuit is at fault.
