

There is something to be said for buying a truck that’s going out of production. It’s a dated interior, especially after seeing previews of the new one in person, but the uplevel touches that come with the Denali trim level still keep things respectable in the cabin. The green glowing gauges, LCD readouts and fingernail-sized buttons on the multimedia system are all overdue for the history books, but they remain easily legible and largely uncomplicated. The instrument panel’s familiarity and plastic quality are ready for this year’s coming refresh, but the assembly quality and tactile feel of the attractive chocolate brown two-tone interior is still top notch. The heated and cooled seats are 12-way power adjustable and covered in premium leather. Although the interior shows its age in terms of design and function, it is still a comfortable, pleasant place to spend time. With the cancellation of the Cadillac Escalade EXT, the Sierra Denali currently sits as GM’s most luxurious light-duty pickup. Fuel economy is EPA rated at 12/18 mpg city/highway, and we observed 14.5 mpg in mixed use, including a lot of 80 mph highway jaunts between Ann Arbor, Mich., and Detroit. We didn’t do any towing or hauling with our week in the truck (seeing as how it was the media preview at the 2013 Detroit auto show and we were otherwise occupied), but the Sierra Denali’s 1,623-pound max payload and 9,400-pound towing capacity are more than up to most tasks. Our Onyx Black Metallic Denali moved confidently into traffic (thanks to a torque monster of a motor) yet rumbled quietly around town without any issues. The standard transmission is GM’s 6L80 Hydra-Matic six-speed automatic, coupled with an electronic transfer case and full-time all-wheel drive. Both feature GM’s Active Fuel Management cylinder deactivation, which seamlessly cuts off fuel during cruising situations to help improve fuel economy slightly. Powertrains haven’t changed for the Denali model it’s still the FlexFuel 6.2L V-8 cranking out 403 hp and 417 pounds-feet of torque and still utilizing GM’s previous-gen Active Fuel Management (AFM) cylinder deactivation, which is designed to seamlessly cut fuel off during certain level-ground cruising and coasting situations to help improve fuel economy. Just about everything remains unchanged from the 2012 to 2013 model year for the Sierra, with the exception of two new colors that aren’t available on the Denali anyway. Because the company is looking to clear dealer lots of the 2013 models before the 2014s arrive, there are some sweet deals on these trucks at local GMC showrooms. Well, while the new 2014 GMC Sierra may be just around the corner, the 2013 is still an extremely capable, powerful, comfortable rig with a practically bulletproof reliability - given how long this truck has been built, GM worked out the manufacturing and design kinks a long time ago. Some may wonder why we’d test one of these instead of waiting a few months for the next model.


This is the last hurrah for the 2013 GMC Sierra 1500 Denali before the new model replaces it. It’s been around longer than any other current full-size pickup except the Nissan Titan, and right now, GM is building the final models before switching over to the refreshed 2014 version that’s due later this summer. In fact, you’ve seen this truck for a long time, as it was introduced for the 2007 model year. To make sure these are the correct tightening torque values, you can use the data below to verify this is the right model.You’ve seen this pickup truck before. Most-used torque settings for GMC Sierra 3 Part The tables after it contain all torque spec values I could find. The first table contains the most-used torque settings. Below you'll find the tightening torques for the GMC Sierra 3 in both Nm and ft/lbs.
