I.D. this gas pedal?

[bigmoe]

Can anyone identify this pedal to ease my mind. I got my 08 Tahoe 5.3 LMG and wiring harness from a guy who works in the salvage division of a government insurance company. He saw the Tahoe LTZ71 only had 43000 miles on it and had his guys pull the motor for his own project. He ended up selling it to me because a Camaro came along. It came with the pedal and about 3ft of the wires. I pulled an 08 Silverado pedal from the wreckers when I got more of the wiring harness and it doesn't look like this one at all. The Silverado one is all plastic and curvy. I contacted the guy who I got the motor from and he is "pretty sure" the pedal came from the donor but not positive. Maybe the Tahoe had adjustable pedals?