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The Ford F-150 and Toyota Tundra have earned the top rating in the Insurance Institute for Highway Safety's first roof strength tests of large pickups. The Chevrolet Silverado, GMC Sierra and Dodge Ram are rated marginal. The Chevrolet Silverado, GMC Sierra and Dodge Ram are rated marginal. The Nissan Titan is in the middle of the pack with an acceptable rating for rollover protection.
Source: Insideline.