2015 sierra 2500 heavy duty pickup trucks, Meet the new 2015 gmc sierra hd heavy duty trucks. professional grade and capable work trucks.. Lb7 torque specs - chevy gmc duramax diesel forum, Here are the torque specs for the lb7 duramax engine per factory gm service manual. some of the specs are not included, but these are ones i feel. 2015 gmc sierra 2500hd | options & specifications | gmc canada, View full list of options and specifications of the 2015 gmc sierra 2500hd truck on the official site.. 2015 gmc sierra 3500hd denali review notes, specs, photos, Associate editor graham kozak: you know you're getting horribly spoiled when you hop in a heavy duty pickup and, after glancing around the interior,. 2015 gmc sierra hd - release date, price, specs, 2500, Get ready for new generation of 2015 gmc sierra hd. the heavy duty truck will be introduced next year and gmc marketing manager told us that new 2015 sierra w. 2015 sierra 3500 heavy duty truck | trailering & payload, View trailering and payload capabilities of the new 2015 gmc sierra 3500 heavy duty truck..