Sauber will switch to McLaren gearboxes next season to run in conjunction with their new partnership with engine supplier Honda.
Prior to the Russian Grand Prix, Sauber confirmed the long-standing rumours that they will ditch Ferrari in favour of Honda from next season.
Sauber team principal Monisha Kaltenborn did not give any more information about what the new partnership will bring. But according to Motorsport.comthey will use McLaren gearboxes in 2018, too.
McLaren did use to supply gearboxes to Force India before they made the switch to Mercedes.
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