The very first Duramax diesel debuted in 2001 — the LB7 6.6L, found in Chevy and GMC 2500 & 3500 HD trucks. For a lot of people, this engine set the tone for what a modern pickup-truck diesel should be: smooth, powerful, quiet for its time, and incredibly capable. In this video, I break down why the LB7 is considered iconic, what GM absolutely nailed with this engine, and also the real-world issues it had — because it definitely wasn’t perfect. So here’s the question for you 👇 Do you think the
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The very first Duramax diesel debuted in 2001 — the LB7 6.6L, f…
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