I just replaced my 2005 2500hd 4x4 shocks with Monroe Sensa-Trac shocks. I wish I would have done it about 5 years ago. Did it myself - 20min for each front and 5min for each rear. Did not have to remove any tire or use a jack - just turn the tires. I have been offroad with my truck about twice in 10 years so I only needed a good replacement. I was looking for comfort above all else. I have about 10000lb travel trailer. The shocks took more than 50% of the bumps and movements away. It's still a truck, but it made a great improvement over the stock 15 yr old shocks.