Which 1 is better??? Does 1 have more power???

The name and price is the only difference.

The name and the price. Both are essentially the same car (same size, styling, etc). the GMC Yukon is meant to be more ''luxurious'' than the Tahoe (kind of like how Lexus is Toyota is luxury brand but many of the cars are the same).

They used lock washers while assembling the GMC.

l have a 1999 GMC Denali and at the time it seemed to have more room then the 1999 Tahoe.. l drove both, the Denali was far better..

Just as 'That Gay Guy' said. GMC is to Chevy as Lexus is to Toyota (Acura is to Honda, Lincoln is to Ford, Chrysler is to Dodge).

Almost everything is the same! The frame & drivetrain r identical. The interiors r usually the difference, with the GMC being slightly more upclass (measurements r still the same such as legroom/headroom). The front grille is usually different (may have different headlights), the steering wheel, maybe wheel design. Differences depend on model.

10 years ago the only difference was different badges & steering wheels. Anything u could get on the GMC u could get on the Chev & a slightly cheaper cost.

The yukon with 5.3L motor is a flex fuel car.