I was wondering if anyone has a Chevy Colorado with a 5 cylinder engine, and the Z85 suspension? I am looking to get another truck and was wondering if the 3.7 engine with the Z85 suspension would be enough to pull a 20" pontoon boat. I am guessing the pontoon weighs around 3000 lbs although i have never had it weighed. I know the Silverado truck would pull it for sure, but I am also thinking about gas rpices. Thanks for any information about this truck.