
A review of the 2011 GMC Sierra Denali 3500 HD has been posted over at Pickup Trucks. 'The Sierra's new exhaust brake, when engaged, helped slow down the hauler a touch quicker than without it. Although the exhaust brake is not for everyone, we'd like to hear it make a more noticeable tonal change. Our other complaint is that there is no way to see exactly which gear you are in at any given time unless you have the Allison in Manual mode. It would be nice, no matter what your preference, to see how the gears are working like in the new Ford Super Duty. We also tried a few runs with a giant 16,000-pound, 39-foot Cimarron Horse Trailer loaned to us by Transwest Truck Trailer RV in Frederick, Colo. By the time we finished our hill-climb runs (at 3:30 a.m., ugh), we were ready for bed.




