If you want a Tahoe that'll outlive your mortgage, hunt down a 2000-2006 GMT800, the last generation before GM added Active Fuel Management and turned oil consumption into a lifestyle. Those trucks routinely hit 250k miles with just a transmission rebuild somewhere past 150k. Everything from 2007 forward carries the AFM lifter time bomb: one collapsed lifter means a $5,000 engine teardown, and the 6L80/8L90 transmissions fail even when you do everything right. The 2021 redesign rides better and looks sharper, but dealership techs report transmission replacements at 1,400 miles, and GM's killing CarPlay in 2026, locking you into their buggy infotainment forever. Buy a GMT800 if you want peace of mind, or budget for an AFM delete the day you sign. Skip this if you want a full-size SUV that doesn't require a maintenance prayer circle.
A 15-year-old platform that still sells because it's the only three-row SUV offering a 392 Hemi and 7,000-lb towing under $60k. The current generation (2011+) has genuinely matured, owners report the 5.7 Hemi runs strong and the ZF8 transmission holds up, a stark contrast to the catastrophic engine failures that plagued pre-2011 models. The tradeoff: it guzzles premium fuel, the interior feels a decade behind, and those HVAC blend door seals turn to goo on 2011-2019 models, gluing your vents shut. Buy it if you need V8 power and towing in a family package and accept you're choosing driving fun over efficiency. Skip it if you want modern tech, fuel economy, or the peace of mind a Telluride or Highlander delivers.