for 2001-10 Chevy Silverado 3500 - [2000-13 Chevy Suburban 2500] - 2001-06 GMC Sierra 1500 HD - [2007 GMC Sierra 1500 HD Classic] - 1999-04 GMC Sierra 2500 4x4
for 2001-10 GMC Sierra 2500 HD - [2001-10 GMC Sierra 3500] - 2000-13 GMC Yukon XL 2500
Piston seal adjusts as it wears to maintain a tight seal between the piston and pressure tube. This minimizes leak paths for a longer, more consistent, product life
Detroit Axle shock absorbers are built to the highest quality and offer top performance. O-ring provides pressure to the inner tube and creates a tighter seal to keep the valve less susceptible to dirt, wear and fatigue.