K 3500 Truck 4WD V8-6.0L VIN U (2002)
21. Remove the fuel rail bolts.
22. Remove the fuel rail.
23. Remove and discard the fuel injector lower O-ring seals (4) from the injectors (3).
INSTALLATION PROCEDURE
1. Lubricate the NEW fuel injector lower O-ring seals (4) with clean engine oil.
2. Install the NEW O-ring seals (4) to the end of each injector (3).
3. Remove the retaining clip attaching screw (22) and crossover pipe retainer (21) to the right hand fuel rail.
4. Remove the crossover pipe rail (25) from the right fuel rail (15).
5. Remove the crossover pipe O-ring (20).