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2016 Chevrolet Silverado 1500 Gets 8-speed Automatic Transmission
The GM-developed Hydra-Matic 8L90 eight-speed is approximately the same size and weight as the Hydra-Matic 6L80 six-speed automatic. Its 7.0 overall gear ratio spread is wider than GM’s six ...
A Judge Told GM It Has to Face That Class Action Lawsuit Over Bad Transmissions
Per Reuters, the issue concerns the 8L45 and 8L90 eight-speed automatic gearboxes sold from model years 2015 to 2019, ...