A former AFL player who had meth in his system when he killed two women in a head-on car crash while they were on their way to a Country Womens Association event has been sentenced to more than 10 years' jail.

At the time of the crash in June last year, Shannon Cox, 39, was on a community-based order for drug driving offences.

Cox's Toyota Prado drifted onto the wrong side of the Brand Highway near Cooljarloo, about 170 kilometres north of Perth.

His car hit a road train trailer, spun and hit the trailer again before smashing into a hatchback carrying Thelma Clausen and Coral Seinor.

The pair, who were in their 80s, died at the scene.

Meth smoking admission

The court heard Cox, who had minimal sleep, was found to have methylamphetamine in his system and may have fallen asleep at the

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