GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 2WD 🢒 Safety and Security 🢒 Seat Belts 🢒 Seat Belt Component Views
Figure 1:

Driver Seat Belt Buckle
Object Number: 781067 Size: MF
(1)Seat Belt Buckle
(2)Seat Belt Switch Connector
Figure 2:

Passenger Seat Belt Buckle (AL0)
Object Number: 1459522 Size: MF
(1)Seat Belt Buckle
(2)Seat Belt Switch Connector (AL0)