The new Tahoe is apparently heavier. Are the next generation GM trucks using the same platform? If that is the case then they will gain some weight like Dodge/Ford.

 

I'm positive that the new 2007 Tahoe and new GM trucks will all have the GMT-900 chassis platform. I wonder if the added weight will compensate nicely with the new, more powerful engines? In the end, I think the 2002-2006 GM trucks and SUV's will have the best horsepower-to-weight ratio.

 

I say 2 years from now GM trucks will have the best power to weight ratio ever and the best mileage ever in a truck

 

The weight is due to the fully boxed frame, but if 5.3s with 295hp and 3.23 rear end is putting down 8.1 0-60 i wouldnt be surprised if the added weight and horsepower would run quicker. The 5.3 has 340tq too now so 320hp thats 25 plus hp so i would say the added weight wont be a problem. Also it will probably be 400 more pounds making an ECSB weight at 5450 and a CCSB weight at 5700.
By my calculations it will be the same or a bit faster with the new engine and platform.
07
ECSB 4x4 with 320hp= 15.8 1/4
CCSB 4x4 with 320hp= 16.1 1/4
06
ECSB 4x4 with 295hp= 15.9 1/4
CCSB 4x4 with 295hp= 16.1 1/4

More weight more power same performance.