- Use to loosen or tighten injection pump retaining bolts whenever pump timing adjustment or pump service is required
- Services 1996–1999 GM full-size 2- and 4-wheel drive trucks, vans, and Suburbans with 6.5L diesel engine
- Two specially bent wrenches are needed, due to the location of the throttle, cruise control, T.V. cable bracket, cooling system crossover pipe and bracket, and the thermostat housing on vans and pickups
- Wrenches are 15 mm, 12-point, double box-end type