I put Bilstein front shocks on my truck (2010 GMC 1500 4x4) at 70,000 miles. My truck has jumped every bump since I've had it. I want to replace the stock mufflers as soon as I get my truck. Now the ride is perfect, no bouncing and less body roll. I would recommend buying a shock nut tool to tighten the nut when assembling the shock absorber.