Silverado 1500 2WD V6-4.3L (2007)
18. Connect the engine wiring harness electrical connector (2) to the right rear HO2S electrical connector (1).
19. Install the right rear CPA retainer.
20. Install the right rear HO2S electrical connector clip to the engine harness clip (3).
21. Connect the right front HO2S electrical connector (5) to the engine wiring harness electrical connector (4).
22. Install the right front CPA retainer.
23. Install the transmission crossmember.
24. Position the oil pan skid plate and install the oil pan skid plate bolts, if equipped.
Tighten the bolts to 28 N.m (21 lb ft).
25. Lower the vehicle.