I have a 2005 Chevy Silverado Z/71 with 82,000 miles on it I purchased it new and dealer had installed 4 inch lift kit from BDS. It rides really well on smooth pavement, but will rock you pretty good on any kind of hole or bump in the pavement. It hasn't always done this, just started around 75,000 miles or so. I replaced all 4 factory shocks with Bilstein's in 2014 when the truck had around 50,000 miles on it. The factory shocks had gotten rough riding so I replaced them with the Bilsteins 5100 series, good for up to a 6 inch lift. Truck is like a lot of 4/ wheel drive models, very little off road use, except when we have snow or ice. Not often in Georgia. Question is, would the Bilsteins be worn out in 5 years and 32,000 miles? Maybe I need to look elsewhere, bushings, hubs, or something else. I really like the truck and it is hard for me to believe 15 years has gone by, time sure flies. Thanks in advance.