2006 GMC Sierra 3500 Reviews, Pricing & Specs




































































































What owners say
I have the Duramax diesel with the Allison transmission and the power is phenomenal! The ride is extremely comfortable and the interior is roomy and comfortable. The fuel economy is great on the highway when not towing (~20 MPG), but when towing a heavy load the economy goes down to around 12 MPG. Overall, I love this truck.
November 29, 2011These are excellent trucks that will be a solid work horse for years to come. They are comfortable and reliable
May 21, 2021Best truck I have owned to date. Will pull anything I hook to it, anything. Great power, ok mileage. Does great off road, goes where you point it, it knocks downs the trees. A blast to drive even without roads.
July 3, 2009What owners say
I have the Duramax diesel with the Allison transmission and the power is phenomenal! The ride is extremely comfortable and the interior is roomy and comfortable. The fuel economy is great on the highway when not towing (~20 MPG), but when towing a heavy load the economy goes down to around 12 MPG. Overall, I love this truck.
November 29, 2011These are excellent trucks that will be a solid work horse for years to come. They are comfortable and reliable
May 21, 2021Best truck I have owned to date. Will pull anything I hook to it, anything. Great power, ok mileage. Does great off road, goes where you point it, it knocks downs the trees. A blast to drive even without roads.
July 3, 2009This truck is a towing machine, it pulls my 10000# enclosed car trailer like it's not even there. It drives like a Caddilac and pulls like a Peterbuilt. The only negatives are it is tough sometimes to find a parking spot and due to the fact it has the two inch body lift for the 4wd it does stand a little tall. It gets 20+ mpg on the highway and about 15 around town. the torque from the diesel is amazing and the 6 speed allison can always adapt to the conditions.
July 23, 2008