1981 GM Truck Unit Repair Manual
Original Factory Unit Repair Manual
This manual contains information on Trac Pac System Control Units
Contents:
- Description
- System Components
- Component Repair
- Trailer Hand Brake Control
- Air Supply Valve
- Tractor Protection and Quick Release Valve
- Synchronizer Valve
- Air Booster and Valve
- Double Check Valve and Stoplight Switch
- Specifications
A GOOGLE AD IS SHOWN BELOW-IT IS NOT ASSOCIATED WITH THE PRODUCT ABOVE