:The Sierra HD, along with its GM corporate twin, the Chevrolet Silverado Heavy Duty, will also feature an all-new chassis and a next-generation 6.6-liter 'LML' Duramax V-8 clean diesel engine, plus new wheels.Check out the photo here:
Hmm. Hard to tell if this is a 2WD or 4WD model. If they're switching to solid front axle, I don't see the "pumpkin" in the front. That's what a lot of guys were hoping for with this latest refresh.
Rumor is the 4X4's will get a significantly revised IFS with greater capacity, matching the Super Duty 4X4's. Frame rails do not appear to be as low as the current truck. HD's are scheduled to debut at the Chicago Auto Show in 2 weeks.
its all ready better than any hd truck i think it loook cool i hope it get over 700 torqe and close to 400 horse power and i think gm should put the 6.2 in the hd if you want power get the gas if you want more pulling power get the duramax