Chief Keef is done being a pot-smoking reckless driver who carries around tons of cash ... at least that's what he says.
Keef was cruising out of LAX Saturday night -- and heading to an undisclosed rehab facility -- when he told us about the big life changes he's making.
C.K. clearly wants it to be known he's making changes ... but with Keef constantly flaunting his weed habit on Instagram ... and 3 positive drug tests for marijuana -- we gotta ask ...
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