Most G's have factory lockers, only a few didn't have them and a Mill spec truck like the one in the video almost certainly has them.

W460/1s front and rear
W463s front, center, and rear.

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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out
1990 300SEL Smoke Silver (Parting out)
1991 350SDL Blackberry Metallic (481)

"The thing is Bob, its not that I'm lazy...its that I just don't care."