For sale: Parts for Sierra. 4 Method Competition rims with original sensors and Apex valves (rims for sale alone or with sensors). No dents, scratches, or anything. (Only 3 hubcaps and 3 valves available). GMC Sierra front and rear seats, models 2007-2013. Driver's seat is electric, passenger's is manual, with a center console. All seats are intact except for the driver's seat, and they need cleaning along with the console. Price: Contact privately.