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QLS Blues
Posted to HD/Fleet Forum on 5/30/2025 2 Replies

Hi Everyone, Happy Friday! I have a 2017 Freightliner M2 Grade all for a local city here. It has a failed QLS and are on backorder for 2-3 months. P#04-35960-000. NO ONE in the country has one. Does anyone know what exactly goes wrong with them? Can something ... Login to read more.

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