RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo VIN A (2007)
4. Use two fingers to press down on valve spring retainer (3) to unlock two valve keepers (2). If valve keepers will not release using finger pressure,
locate a 5/8 inch deep socket to the spring retainer (3). Gently tap on the socket with a small hammer to release keepers, then use two fingers and
press for keeper removal.
5. Remove valve spring retainer (3) and valve spring (2).