Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
I recently purchased a 2007 Duramax Classic HD 3/4 ton 4 door pickup with 173,000 miles. Seemed to be in good shape but since I'm new to diesels I had a highly recommended mechanic check it out and he said it looked well cared for. I had fluids and filters updated right away and installed a...