Check out the frame for rust…
Check out the frame for rust, a major problem in the northern states. Despite serious winter maintenance by washing and flushing the undercarriage, My 2003 Tahoe LTZ was scrapped at 165,000 even though the engine, transmission, interior were very good. The trailing axle mount rusted out and broke. We found the whole frame was gone and was unrepairable. I he ad a similar problem with a 1996 Silverado where the frame rusted through right behind the cab. I didn't see any comments by the author that even hints at this (PS: I am an
automotive engineer with a Masters in Mechanical Engineering and hold patents on vehicle component design). Recommendation to manufactures?: use better (known) rust prevention technology. When you spend over $50K for a vehicle, an extra couple of hundred bucks is not an issue. WB Kidder