PARKING BRAKE RELEASE EFFORT
A revised parking brake release cable assembly was recently introduced in the 1988 C/K truck. This new cable is self lubricating which reduces the effort required to release the parking brake. On vehicles where customers have commented about the parking brake release cable effort, the new assembly may be installed, part number 15567922.
The new parking brake cable was incorporated into production effective with the following VIN breakpoints.
Pontiac East - GMC JE5016317814 Chev JE151905
Fort Wayne - GMC JZ524061 Chev JZ181605
Oshawa - GMC J1540115 Chev J1206554
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.