For 1990-2009 cars

#### Tools Required

J 36660-A Torque Angle Meter

### Removal Procedure

1. Remove the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement - Left Side and Valve Rocker Arm Cover Replacement - Right Side.

Important: Keep the components separated in order to install the components in the same location.

2. Remove the rocker arm bolts.
3. Remove the rocker arms.

Important: Keep the pushrods in order in order to install the pushrods in the original position.

4. Remove the pushrods.

### Installation Procedure

1. Install the pushrods in the original location.

• | Coat the ends of the pushrods and the bearing surfaces of the rocker arms with GM P/N 12345501 or GM P/N 88862586 (Canadian P/N 992704 or Canadian P/N 88862586) or the equivalent.

• | The intake pushrods are identified with yellow stripes and are 5 3/4 inches long.

• | Exhaust pushrods are identified with green stripes and are 6 inches long.

• | Ensure that the pushrods seat in the lifter.

2. Install the rocker arms.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the rocker arm bolts.

Tighten
Use the J 36660-A to tighten the valve rocker arm bolts to 19 N·m (14 lb ft).

4. Install the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement - Left Side and Valve Rocker Arm Cover Replacement - Right Side.