Sierra 1500 4WD V6-4.3L (2008)
1. Install a new a O-ring on the speed sensor (2). Lubricate the O-ring with clean transmission fluid.
2. Install the new speed sensor (2) into the speed sensor bore. Align the hole in the retaining bracket with the bolt hole in the speed sensor boss.
Notice: Refer to Fastener Notice .
3. Install the speed sensor bolt (1).
Tighten bolt to 12 N.m (108 lb in).
4. Reconnect the external wiring harness to the speed sensor.
